If only they spent half the time bandaging that wound...
Maybe Lance Corporal Blake would've survived. Could've applied pressure and not move the body. Take off all his clothes or use the bayonet to cut the clothes (can't recall if they still had it attached after the bunker trap explosion) then apply a bandage wrap around his waist. He literally died when there was literally people nearby not long after he died. Blood was gushing or rather being soaked up like a paper towel.
One thing to take away from this movie is to never trust the enemy. From the German pilot then to the young German who saw Lance Corporal Schofield while the other was drunk throwing up outside.