What did soldiers do for relaxation?

they where not exactly bad they just where not real soldiers they where a random group of people chosen to fight

It makes killing them easier.

they left the other soldier so that they can fight to the other enemies or they bring the dead soldier to their camp site so the family of the dead soldier can see them.

I chose to be a Combat Medic, personally. Soldier is a very broad term, and encompasses a number of roles in any army. Truck drivers, administrative clerks, infantrymen, snipers, tank crew members,...