All I'm writing for today is...
Personal weapons:
USP Tactical - Durable, accurate, and suppressor-ready .45ACP pistol with 12-round magazines.
UMP45 - .45ACP SMG. I chose .45 as the standard pistol round for the army, because it has proven stopping power and full-power rounds are already subsonic, making suppressors more effective.
AA-12 - Full auto shotgun with 20-round drum magazines.
M3 Super 90 Tactical - Pump-action/semi-auto shotgun with pistol grip.
LR 300ML - Compact M4 variant with high rate of fire, recoil reduction system, and Picatinny rail.
L85A2 - One of the most accurate modern assault rifles, very reliable now that HK has rebuilt it.
UGL - AG36 40x46mm grenade launcher compatible with the SA80 series.
MSG90A1 -Mil-spec version of the famous PSG-1 semi-automatic sniper rifle, lighter and more reliable, with back-up ironsights and a threaded barrel.
L115 - Reliable and accurate .338 Lapua Magnum bolt-action rifle with a hollow polymer stock that reduces weight.
NTW-20 - South African detachable box-magazine fed, bolt-action anti-material rifle that can use barrels for 14.5mm Russian and 20mm MG151 ammunition.
Ultimax 100 MK4 - Lightweight 5.56mm NATO LMG that can accept M16 magazines or 100-round BETA C-mags, and has almost no felt recoil.
MG3 - Modern 7.62x51mm NATO version of the excellent MG-42 general-purpose machinegun.
MM-1 - Semi-automatic 40x46mm grenade launcher with a 12-round revolving magazine, for suppression and destruction of hidden targets.
PzF-3 IT600 - Anti-tank rocket launcher that fires 110mm shaped-charge warheads which can be set for either greater penetration (armored targets) or to be more effective against light vehicles, bunkers, and brick walls. Does not produce dangerous backblast.
FGM-148 Javelin - Fire-and-forget missile launcher that takes a top-attack flight profile, enabling it to kill any modern tank with one hit out to 2.5km. Can also be used against bunkers and helicopters.
Starstreak HVM - Very fast anti-aircraft missile launcher that fires three-stage missiles containing 3 high-density darts designed to destroy high-performance low-flying aircraft.
[edit] I added descriptions since I'm too lazy to link.