The Pain is encountered on the Dolinovodno bridge. He controls swarms of hornets and can even fire them as projectiles.
- Phase 1: Hornet Attacks: The Pain will send hornets at you in various formations. Use your AK-47 or M1911A1 to shoot down the swarms. He will also create a hornet shield around himself; use grenades to disperse it.
- Phase 2: Grenade & Tommy Gun: He'll start throwing grenades and firing a Tommy Gun. Stay in cover and pop out to shoot him when he's exposed.
- Weakness: His exposed body. Aim for his head or torso when he's not protected by hornets.
- Non-Lethal Strategy: Use the Mk22 tranquilizer gun. Aim for his head. This is challenging due to his constant movement and hornet shield. You can also throw live grenades (not frag) at him to stun him, then shoot.
- Reward: If defeated non-lethally, you receive the 'Hornet Stripe' camouflage.
