Quoting Sgt. Will Smith
If this is ww2 then instead of a M4 he should have a M1 Garand or Tommy gun. The guy with a knife could also use a pistol.
When I just got into brickarms and ww2 I did not do much studying so I thought that all the brown rifles like an M1 Garand were from the revolutionary war I had used up my thompson on somthing else and the lego thompsons stink but to make realistic one I take a indiana jones rifle and a a grey claw clos as possible to the handle sorry this comments so long.