Ecco la lista completa delle armi disponibili nel multigiocatore di Modern Warfare 2.

Armi Primarie

Fucili da assalto
• M4A1 (default)
• FAMAS (lvl 4)
• SCAR-H
• TAR-21 (lvl 20)
• FAL (lvl 28)
• M16A4 (lvl 40)
• ACR (lvl 48)
• F2000 (lvl 60)
• AK-47 (lvl 70)

Sub-Machine Guns
• MP5K (default)
• UMP45 (default)
• Vector (lvl 12)
• P90 (lvl 24)
• Mini-Uzi (lvl 44)

Light Machine Guns
• L86 LSW (beginning)
• RPD (beginning)
• MG4 (lvl 16)
• AUG HBAR (lvl 32)
• M240 (lvl 52)

Fucili da cecchino
• Intervention (beginning)
• Barret .50cal (beginning)
• WA2000 (lvl 36)
• M21EBR (lvl 56)

Riot Shield (default)

Armi secondarie

Machine Pistols
• PP2000 (default)
• G18 (lvl 22)
• M93 Raffica (lvl 38)
• TMP (lvl 58)

Fucili da caccia
• SPAS-12 (default)
• AA-12 (lvl 18)
• Striker (lvl 34)
• Ranger (lvl 42)
• M1014 (lvl 54)
• Model 1887 (lvl 67)

Pistole
• USP .45 (default)
• .44 Magnum (lvl 26)
• M9 (lvl 46)
• Desert Eagle (lvl 62)

Lanciatori
• AT4-HS (default)
• Thumper x 2 (lvl 14)
• Stinger (lvl 30)
• Javelin (lvl 50)
• RPG-7 x 2 (lvl 65)

Equipaggiamento
• Frag (default)
• Semtex (default)
• Throwing Knife (lvl 7)
• Tactical Insertion (lvl 11)
• Blast Shield (lvl 19)
• Claymore (lvl 31)
• C4 (lvl 43)

Accessori
• Grenade Launcher
• Red Dot Sight
• Silencer
• ACOG Scope
• FMJ
• Shotgun
• Holographic Sight
• Heartbeat Sensor
• Thermal
• Extended Mag

Granate speciali
• Flash Grenade x 2
• Stun Grenade x 2
• Smoke Grenade x 1