Allied Army

Tanks
M1A1 or M1A2 Abrams (more info)
US's Largest Tank. This vehicle is the mainstay of the US Army's armored division for years to come. It has a 120mm cannon and can travel at over 45mph! Its armed with 120mm main gun 7.62mm coaxial machine gun, 7.62mm anti-aircraft machine gun, .50 cal(12.7mm) AA MG, 2 x 6 smoke dischargers. Its armor is classified, and very protective on the battlefield.
British Centurion
This British tank is armed with 105 mm main gun, 7.62 mm coaxial machine gun, 7.62 mm anti-aircraft machine gun, 12.7 mm RMG, 2 x 6 smoke dischargers. This is slow only maxing out at 34.6 kph. Its very, very heavily armored with steel, but does not have the NBC (Nuclear Biological Chemical) system, which most modern tanks have. So what it has in armor and weapons it lacks in speed and NBC system. The challenger is replacing this.
British Challengers(more info)
Its armed like an M1A1 Abrams, 120 mm main gun, 7.62 mm coaxial machine gun, 7.62 mm anti-aircraft machine gun, 2 x 5 smoke dischargers. Its armor is classified--but very advanced. It has the NBC system, and can go as fast as 55km/h. There is a British Challenger 1 and a British Challenger 2 with a few variations.
British Chieftan
The British Chieftan is armed with 120 mm main gun, 7.62 mm coaxial machine gun, 7.62 mm anti-aircraft machine gun, 2 x 6 smoke dischargers. Its armor is classified, but overall its much like the Challenger.
Merkava
This Israeli tanks is armed with a 105mm main gun, 1 x 7.62 mm machine gun - coaxial, 2x 7.62mm machine gun - anti aircraft, 1 x 60mm mortar. The armor of this tank is classified, and has the NBC system. This is a fully equipped tank, protected from enemies, and can cause a lot of trouble for Israeli enemies.
Leclerc
This heavy French tank is armed with 120mm main gun, 12.7mm coaxial machine gun, 7.62mm anti-aircraft machine gun, 3x 9 smoke dischargers. It can be as fast as 75kph and can attack up to 550km away. It has the NBC system, and armor is classified. As history always repeats-French have the top of the line tanks.
AMX-13
This French medium battle tank is armed with 90 mm main gun, 7.62 mm coaxial machine gun, 7.62 mm anti-aircraft machine gun(optional), 2 x 2 smoke dischargers. It can go as fast as 60kph, and can attack as far as 480km. Its equipped with a good amount of steel armor. However, it lacks the NBC system, and night vision is optional, not standard.
Leopard I
This German tank is armed with 1 x 105 mm, 1 x 7.62 mm machine gun coaxial, 1 x 7.62 mm machine gun AA, 2 x 4 smoke dischargers. Its max road speed is 65km/h. The max range is 600km. Its armed with 70mm steel (very high armored).
Leopard II
One of Germany's top tanks, it is armed with 1 x 120 mm, 1 x 7.62 mm machine gun coaxial, 1 x 7.62 mm machine gun AA, 2 x 8 smoke dischargers. Max Road Speed is 72 km/h. Its max range is 550km. It, like Leopard I, is equipped with the NBC system.
Jagdpanzer Kanone
This German tank is armed with 1 x 90 mm, 1 x 7.62mm AA MG, 1 x 7.62mm coaxial MG, 8 smoke dischargers. Its max speed is 70km/h, much faster than the average Russian/Chinese tank. Its max range is 400km. Its heavily armed with steel, and fast, making this one of Germany's best tanks. The main gun should be larger than 90mm though.

APC's and IFV's and transports
M2/M3 Bradley IFV
US's best infantry fighting vehicle (mix of a tank and APC-not as big as a tank but more armored than an APC and carries soldiers). Armed with a 1 x 25 mm, 1 x 7.62 mm machine gun - coaxial, 2 x TOW ATGW launcher, 2 x 4 smoke dischargers, this has taken much heat from critics because its so expensive. However, this can go as fast as 66km/h. Its armor is like the M1A2, and so classified. It is amphibious, and has first round hit capability.
XA-185 Armored Vehicle
The XA-185 armored vehicle is known throughout the world for their superior effectiveness and excellent personnel protection. Features include: Allison MD 3560P automatic gearbox 6 + 1, Valmet diesel engine 203 kW, and Welded armored steel chassis with flexible modular armor system. Each vehicle offers the highest degree of mobility and spacious interiors. The XA vehicle series combines reliability and easy maintenance. Variations include troop carriers, command and communication vehicles, recovery and repair vehicles, radar carriers, ambulances, TOW anti-tank missile system carrier, anti-aircraft missile system carrier, and can be equipped with two different turret versions, the 12.7 mm and 25 mm. Its US made.
M113 APC
Its armored with aluminum not steel, and is amphibious. Its top speed is 67km/h. Its armed with a machine gun, and can carry 11 troops. Although not used often by the US anymore, other countries like Canada use it.
Sa-240 heavy offroad truck
The SA-240 heavy off road truck are designed for off road operational requirements and moving troops and cargo outside the road network. This means that their off road capabilities have been pushed to the limit. Features include: ZF gearbox 6 + 1, sisu axles, and a cabin for 3 people. The 4 x 4 model has a payload up to 6,500 kg and a maximum combat weight of 14,000 kg. The 6 x 6 model has an automatic gear box, a payload up to 10,000 kg and a combat weight of 22,000 kg.
British Warrior
This APC can carry 7 people. It is armed with a 30 mm cannon, 7.62 mm machine gun, 2 x 4 smoke dischargers. It can go as fast at 75km/h. It has a NBC system, and classified armor. (by now you should know the British don't tell their armor secrets).
Marder
This German infantry fighting vehicle can carry 6 men. Its armed with 1 x 20 mm, 1 x 7.62 mm machine gun coaxial, 1 x 6 smoke dischargers. Its max speed is 75 kph, and max range is 520km.

Reconaissance Vehicles and other Armored Vehicles.
LAV 25
This US vehicle is armed with 1 x 25 mm, 1 x 7.62 mm machine gun - coaxial, 1 x 7.62 mm machine gun - AA, 2 x 4 smoke dischargers. This amphibious IFV can carry 6 soldiers, 1 less than a Bradley. Its armor is not as good as the M3 Bradley, but its top speed is 100 km/h. This Light Armored Vehicle has tires, not tracks for faster speed and support.
Centauro
I'm classifying this as a recon vehicle, and not a tank because of it doesn't have tracks. Its armed with 1 x 105mm, 1 x 7.62mm machine gun coaxial, 1 x 7.62mm machine gun anti aircraft, 2 x 4 smoke dischargers. This Itlaian vehicle's armor is classified, and can hit a target up to 800km away. It can go as fast as 100km/h.
Scimitar
This British made reconaissance vehicle is armed with 30 mm cannon, 7.62 mm machine gun, 2 x 4 smoke dischargers. It can go as fast as 80.5 km/h. Its amphibious, with NBC system, and is used by the UN as a Infantry Combat Vehicle, but can defend itself from tanks, as long as its not hit.
British Scorpion
This advanced reconaissance vehicle is armed with a 76mm cannon, 7.62 mm machine gun, 2 x 4 smoke dischargers. It can go as fast as 80.5 km/h. It amphibious. Armor is classified on this APC with the NBC system.
British Striker SP ATGw vehicle
Its armed with a launcher w/ 5 swingfire ATGW, 7.62 mm machine gun, 2 x 4 smoke dischargers. Its amphibious and can go as fast as 80.5km/h. Armor is classified on this vehicle.
Humvee
100% troop killer. With a machine gun at its top, this vehicle can be a scout, infantry killer, and as a light warfare force. This vehicle is one of the US's best, and replaces the American Jeep/Ranger. Its fast, bigger, and better. The U.S. Military recently began to field the up-armored and scout HMMWVs. The Up-Armored M1109 will be used by Military Police and scout units. The vehicle has 7.62 mm armor piercing protection around the perimeter, 155 mm overhead blast protection, and mine protection under the body. When used for scouting, the vehicle will be configured with night vision devices, Global Positioning System, MK19 grenade launcher, and SINCGARS radios. The HMMWV in the picture is equipped with a TOW anti tank missile launcher, but may also use the M60 machine gun or the MK19 grenade launcher in it's place.
Desert Patrol Vehicle
The Desert Patrol Vehicle (DPV) is used by the Navy SEAL's and the Army for missions such as, combat search and rescue and scouting behind enemy lines. They usually operate in pairs for mutual support and weaponry includes the MK-19 .20 mm gatling gun for the passenger side gunner, the .50 caliber belt fed machine gun, and the M-60 machine gun for the swivel seat gunner. Additionally, two anti tank weapons (AT-4) can be mounted on the roof for stand off weapons capability. Special sand tires allow the DPV to transit the deep sand regions of the desert. The side compartments can carry supplies, gear, as well as wounded or downed airmen.
M88 ACE
It is used to remove broken/damaged vehicles from the battlefield.
AMX-10RC
This recon vehicle is French. Its armed with 1 x 105mm main gun, 1 x 7.62 mm coaxial machine gun, 2 x 2 smoke dischargers. Its max range for attack is 1000km, and can go as fast as 85km/h. Its amphibious, equipped with the NBC system.
Spahpanzer Luchs
This reconaissance vehicle is German. Its armed with 1 x 20mm main gun, 1 x 7.62mm AA MG, 2 x 4 smoke dischargers. The max road speed is 90km/h, and its max range is 800km. It is amphibious, and a good vehicle for recon missions, and light warfare missions.
Jaguar 1 SP ATGW Vehicle
This German vehicle is armed with 1 x HOT Launcher, 1 x 7.62 mm machine gun, 1 x 7.62 mm machine gun AA, 8 smoke dischargers. The max road speed is 70kph and max range is 400km. It has 50mm steel armor.
Jaguar 2
This German recon vehicle is armed with 1 x TOW ATGW launcher, 1x 7.62mm AA machine gun, 8 smoke dischargers. Its max speed is 70kph and max range is 400km. It has heavy steel (mostly all German armor is).

Artillery
MLRS Rocket Launcher (pic is very big)
This U.S. artillery is the size of an 18 wheeler truck that is capable of launching rocket attacks on the enemy at great distances.
M-109 Paladin
This American artilley has a 155mm cannon; it packs a heavy punch. It is a mainstay of the Field Artillery Branch, with a range of over 20km.
M-110 Cannon
This artillery unit can launch artillery long distances. Replaced, by the M109 Paladin, the U.S. no longer uses this/
AS-90 155mm SPG
Its armed with 1 x 155mm main gun, 1 x 12.7mm machine gun(AA), 2 x 5 smoke dischargers. It can go as fast as 55km/h. It has medium steel armor, with the NBC system. Its range for attack is upto 370km.

Surface-to-Air Artillery
MIM-104 Patriot
US's anti-aircraft vehicle. It launches patriot missiles at enemy aircraft. This is much better than the ZSU-57-2, made by the Soviets. US anti-air is more accurate, but also more expensive.
M48A1 Chaparral SAM
These vehicles carry 4 Chaparral SAMs, and are pretty accurate, but more expensive than the Russian SAMs. They are amphibious, but have little armor.
SISU XA-181 w/Crotale NG SAM system
This fast (100 km/h) anti-aircraft vehicle has 8 SAMs on it with an advanced navigational system. Its amphibious and armored like a light Russian tank. This is a Finish-made vehicle.
Gepard
This German anti-air vehicle is armed with 2 x 35 mm anti-air guns, 2 x 4 smoke dischargers. It is heavily armed, can go 65kph, and its max range is 550km.
Roland
This German anti-aircraft artillery is armed with a launcher w/ 2 Roland SAM's, 1 x 7.62 mm machine gun, and 2 x 4 smoke dischargers. This has a max speed of 70kph, and its max range for attack is 350km. The armor for this is classified.