AGP- Sucks for Sarge

We got into position and readied our weapons while Twitch checked the door for traps and quietly unlocked it. Sarge got a firm grip on the handle, cooked a flash, cracked the door open, and tossed it through. Before he even started to close the door the grenade bounced off something in mid air and sailed right back through. Sarge managed to get out an “OH SHI-” before the flash went off about eight inches in front of his face.
...

The entire fight had taken just a few seconds and the smoke from the flash was still fading as the second agent crumpled to the ground. The psyker was dead, the guardswoman was groggily cursing the dead agent, a barely conscious Sarge was lying on the floor, but the rest of us were okay. We had about two seconds to take stock of the situation before the the door burst off its hinges and landed squarely on Sarge.

The door was followed by a pair of heavily armored arbites carrying shields and shock mauls. Shields raised, they stood right on top of door and looked really confused when they saw an entire squad of guardsmen facing them with weapons raised. There was a brief pause while the arbites realized that the agents were already dead, and we all stared at the feebly cursing lump being crushed under a heavy door and three hundred kilos of arbites. Then Cutter ran in with a scream and the fight was on.
...

The wounded arbite staggered forward and removed over a hundred kilos of meat and armor from Sarge’s back. With a roar of rage Sarge pushed himself upward and managed to unbalance the arbite that was still on top of him. We all seized the opportunity and several volleys of las-fire got past the arbites’ shields, ending the fight.

While the rest of us restrained the badly wounded arbites and hauled them out of the way Sarge slowly pushed himself off the floor. With a pained groan he got his feet under him and lifted the reinforced door, complaining about its weight and cursing arbites in general as he did so. Right as Sarge managed to get upright, his curses were interrupted. A pair of bolt rounds came through the doorway and slammed into the remains of the door and his back.

The door took the brunt of the damage, but Sarge was thrown forwards and slammed into the wall head-first. This was the final straw, and Sarge slipped into unconsciousness as Doc hastily grabbed him and dragged him out of the line of fire.