Light infantry > M4a2 rifles with ACOG and Granade Launchers / M249 suppres-firing rifle.
Enginering Infantries > Shotguns and Mines, Can repair units (That was from BF2 series).
Anti-Armour > Javelin anti-armored missile.
Anti-Air > Troops With Stinger Missile.
Snipers > Equipped with M25 Springfield Special Operations > Equiped with MP5a1 and Timed C4 bombs.
Vechicles:
M1A2/M1A2 sep > The M1A2 can be upgraded to sep and with TOW missiles included. Equipped with Coaxial .50 and can upgraded a officer with .50 on turret.
M1025 HMMVW > Light infantry scout vehicle.
M113 APC > Heavy Infantry Scout.
M2 Bradley > The AFV, IFV for USA Army.
M2 Bradley Linebaker > The A-A, APC
LAV-25 APC (medic) > APC IFV Inefficient counter Armored Vehicles, can heal infantry. (just in game)
M270 MRLS > Long range multiple rocket launcher (12 Rounds)
M109 A6 Paladin > Long range 130mm gun
AIR UNITS:
FA-18 Hornet > The US air sword.
F-15 Eagle > The most effective A-A A-T. (expansive)
A-10 Tunderbolt > Anti-ground aircraft.
F117 Stealth Figher > The name says what this do.
UH-60 BlackHawk / Littlebird > The Infantry Transport Helicopter
AH-1Z Super Cobra > Scout helicopter
AH-64 Apache Longbow > The Combat Chopper
Ch-53 SuperStallion > Can carry vechicles and catch resourses.