| Machine Gun |
Location |
| M60 |
Main OPS 06 (complete mission) |
| M63A1 |
Outer OPS 9-12 and 17-20 |
| PKM |
Extra OPS 028 (complete mission) |
| MG3 |
Extra OPS 031 (Design Specs) |
| EMW Gun |
Extra OPS 079 (complete mission with S-rank) Extra OPS 049 (EM Weapon Design) |
| M134 |
Extra OPS 075 (complete mission with S-rank) |
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