| HANDGUNS |
| Banana | Clear Extra Op 35 |
| C96 | Clear Extra Op 20 with S rank |
| Custom M1911A | Clear Extra Op 34 or Extra OP 50 |
| EZ gun (LR) | Clear Extra Op 32 |
| EZ gun (MR) | Use the sleep CODEC and Paz will drop it in Extra Op 67 |
| K. Pistol | Outer Ops |
| M19 | Clear Extra Op 9 |
| M1911A1 | Clear Main Op: Contact the Sandinista Commander |
| PB/6P9 | Clear Main Op: Zadornov Search 6 |
| PM | Clear Extra Op 16 |
| Support Strike Marker | Clear Main Op: Chrysalis |
| Support Supply Marker | Clear Main Op: Laboratory |
| SHOTGUNS |
| CAW | Outer Ops |
| M37 | Extra Op 28, Aldea Los Despiertos |
| SPAS-12 | Clear Extra Op 62 |
| Twin Barrel | Main Op: Pursuing Amanda, Bananal Fruita (West chamber) |
| Twin Barrel (STN) | Clear Extra Op 23 |
| ASSAULT RIFLES |
| ADM63 | Clear Extra Op 45 |
| ADM65 | Outer Ops |
| FAL | Extra Op 36, Bananal Fruita de Oro |
| G11 | Clear Extra Op 48 with S rank |
| M16A1 (grenade) | Clear Extra Op 25 |
| M16A1 (grenade and laser) | Clear Extra Op 55 with S rank |
| M16A1 (shotgun attachment) | Extra Op 23, below the bridge |
| M16A1 (shotgun attachment and laser) | Clear Extra Op 46 |
| M16A1 (smoke grenade) | Clear Extra Op 26 |
| M16A1 (smoke grenade and laser) | Clear Extra Op 66 with S rank |
| M653 | Clear Extra Op 59 |
| M653 (grenade) | Clear Extra Op 47 |
| M653 (shotgun) | Clear Extra Op 48 |
| M653 (smoke grenade) | Clear Extra Op 49 |
| Patriot | Extra Op 68, knock out Kaz and pat him for design specs |
| RK47 | Clear Extra Op 13 or Extra Op 39 |
| RK47 (grenade) | Outer Ops |
| RK47 (smoke grenade) | Outer Ops |
| RPK | Extra Op 37, Underground Passage B |
| SUG | Clear Extra Op 47 with S rank |
| Tanegashima Musket | Clear Extra Ops 121 & 122
|
| SUBMACHINE GUNS |
| M10 | Main Op Pursuing Amanda, El Cenegal, Swamp |
| M10 (barrel cover) | Extra Op 36, Bananal Fruita de Oro, Sorting Shed |
| M1928A1 | Clear Main Op: Base Infiltration |
| MP5A2 | Clear Extra Op 57 or 49 |
| MP5SD2 | Clear Extra Op 37 with S rank |
| Uz61 | Extra Op 15, map right |
| SNIPER RIFLES |
| M1C | Main Op: Facility, Clear materials carrying facility |
| M1C (psyche recovery) | Clear Main Op 30 Camino de Lava hillside, or Extra Op 46 |
| M21 | Clear Main Op: Zadornov Search 4 |
| M700 | Clear Extra Op 58 |
| M700 (life recovery) | Clear Extra Op 41 |
| Mosin Nagant | Clear Main Op: Battle Tank T-72U. |
| PTRD1941 | Clear Extra Op 50 |
| PTRS1941 | Clear Extra Op 49 with S rank |
| Rail Gun | Clear Extra Op 115 with S rank |
| Stealth Gun | Clear Main Op: ZEKE Fight |
| SVD | Clear Extra Op 35 |
| SVD (night vision) | Outer Ops |
| WA2000 | Clear Extra Op 65 with S rank |
| HEAVY MACHINE GUNS |
| EMW Gun | Clear Extra Op 79 with S rank |
| M134 | Clear Extra Op 75 |
| M60 | Clear Main Op: Jungle Train Tracks |
| M60 (armor piercing) | Clear Extra Op 43 |
| M63A1 | Outer Ops |
| MG3 | Clear Extra Op 31 |
| MG3 (armor piercing) | Clear Extra Op 44 |
| PKM | Clear Extra Op 28 |
| MISSILES |
| C. Gustav | Clear Main Op: Chrysalis |
| C. Gustav (FR) | Clear Extra Op 98 |
| C. Gustav (MP) | Clear Extra Op 24 |
| FIM-43 | Clear Main Op: Helicopter Battle Mi-24A |
| M202A1 (rank 3 and 4) | Clear Extra Op 62 with S rank or Extra Op 107 with S rank |
| M47 | Clear Extra Op 111 with S rank |
| RPG2 | Clear Extra Op 30 |
| RPG7 | Clear Extra Op 38 |
| Sling Band | Clear Extra Ops 125, 126, 127, 128
|
| Sling Post | Clear Extra Ops 123 & 124
|
| XFIM-92A | Outer Ops |
| THROWING WEAPONS |
| Chaff Grenade | Clear Main Op: Pupa |
| EM Net | Clear Extra Op 83 with S rank |
| Sleep Gas Grenade | Clear Extra Op 27 with S rank |
| Smoke Grenade | Clear Research facility in Main Op: Interception |
| Smoke Grenade (color) | Main Op: Zadornov, Ghar El Sena, in the swamp |
| Stun Grenade | Main Op: Pursuing Amanda or Extra Op 22, cabin second floor |
| Support Strike Marker (Thrown) | Clear Main Op: Laboratory |
| Support Supply Marker (Thrown) | Clear Main Op: Pupa |