dragging would be cool just for immersion, i can't find any real good use for it otherwise. maybe only allow someone who is agonising to respawn once his body was placed in safety, or wait untill hes dead. but thats far pitched and how can the game see if he is in safety?
the bandaging part has me confused, it's hard to immagine a soldier in the stalingrad battle saying "i need a bandage or i can't fight anymore" the situations where someone who is still able to continue fighting, but absolutely needs to be bandaged for it (putting his team in peril), seem verry limited. AND these wounds should abolutely interfer with your fighting ability, otherwise you didn't need it and ouchta be shot for demanding it!