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12 Shock Troopers vs 12 Assassins - Half-Life: Opposing Force Retro Battles (GG Retro Battles) View | |
24 Alien Controllers vs 12 Otis - Half-Life: Opposing Force Retro Battles (GG Retro Battles) View | |
Gargantua vs 12 Assassins - Half-Life Retro Battles (GG Retro Battles) View | |
24 Pit Drones vs 12 Engineers - Half-Life: Opposing Force Retro Battles (GG Retro Battles) View | |
100 Zombies vs 12 OpFor Grunts - Half-Life Opposing Force Retro Battles (GG Retro Battles) View | |
6 Ichthyosaurs vs 12 Assassins - Half-Life Retro Battles (GG Retro Battles) View | |
1 Gargantua vs 12 Grunts - Half-Life Retro Battles (GG Retro Battles) View | |
6 Ichthyosaurs vs 12 Grunts - Half-Life Retro Battles (GG Retro Battles) View | |
This Mod Let's You Play as OTIS from Half-Life Opposing Force (Eyepoke42) View | |
24 Alien Controllers vs 12 Grunts - Half-Life Retro Battles (GG Retro Battles) View |