Stay behind and engage the Hind
From Create Your Own Story
As your comrades run past you for the safety of the tunnel, you kneel in the dirt behind the remains of the tank. You see the Hind coming up on your allies. You take a shot at the chopper, purposely trying to get it's attention. Your shot smashes into the thick bulletproof glass of the cockpit, and the Soviet pilots quickly realize that there is a sniper nearby. The Hind stops, hovering in the air, the crew trying to determine your position.
You could take another shot, alerting them to your position but saving your allies, or you could remain hidden, saving your own life but dooming your allies.