United States Colonial Marine Corps (D20 Modern Equipment)
From D&D Wiki
 USCM Information
The USCM is the United States' "force-in-readiness", who are at all times ready to operate in environments far from home soil. By the year 2179, the force has roughly 165,000 marines divided into four divisions, four aerospace wings, and numerous support groups. There is also a reserve division and aerospace wing with an additional manpower of approximately 50,000 troops.
The USCM, along with the U.S. Army, are part of the United Americas Allied Command. The primary duty of the USCM is to maintain the security of the United Americas signatories and colonies, and serves as the vanguard of any major operation.
The USCM have fought on more than two dozen worlds, including Tientsin (8 Eta Bootis A III), Helene 215 and Linna 349.
The fighting groups are organized into three Marine Space Forces, each has primary responsibility for security in their areas. A Marine Space Force consists of one or two Colonial Marine Divisions and a Colonial Marine Aerospace Wing, for ground and air/space combat respectively. They are:
Sol (two divisions), Headquartered at O'Neil Station, L-4 Earth-Lunar system. Eridani (one division), Headquartered at Happy Days, Helene 215 Herculis (one division). Headquartered at Chinook 91 GSO station, Georgia 525.
The Colonial Marines are likely best known for their use of the M41A pulse rifle, a futuristic assault rifle with an underslung grenade launcher, and for the M56 smart gun, a large machine gun which is actually worn by the user using a sophisticated harness mechanism. Also featured in the movie Aliens are the M240 flamethrower, the M4A3 pistol and the UA-571C Sentry Guns. The Colonial Marines also employ a variety of land and aerospace vehicles, including the M577 A.P.C., the UD4L Cheyenne Drop Ship and the Conestoga-class assault transport ship Sulaco.
in these article are the information to use USCM Armour, Weapons, Equipment and possibly Vehicles in your own D20 Modern game.