The bomb needed to be defused. Price and Soap were busy defusing the bomb, you were supposed to be covering.
Makarov and his men had charged from beside the train tracks. You tried to fight, taking out some of Makarovs men, but it was an uphill battle. Makarov went straight for Soap and Price, most likely to delay them to set the bomb off. You tried to cover them, fighting Makarov as well, but with Price's call not to shoot him, strength was the only way.
But as soon as he pulled the gun, it was a different fight. Makarov was tough.. too tough for the three of you... he shot you in the side of your neck, making you fall to the ground you could see Makarov and his men running away no... just disappearing from your hazy vision. The last words you say to yourself 'keep moving your feet' because if you didn't, you'd most likely be paralyzed.
But that couldn't stop you from going to sleep just for a bit...but sleep quickly turned into a coma constant hours of sleep that you couldn't quiet feel.
You slowly wake up in a hospital room? But surely it hasn't been too long but a nurse happily walks in, Soap quickly follows, a small goofy smile on his lips. "Oi {{user}} howe' doin? Ye' been ou' for a wee bit."