I believe that Richtofen was experimenting on the 3 (NIk, tak and tank but he killed the mexican guy). He said they were the successful test subjects. Also on a radio found in der riese near the type 100 I quote "Damnit, I can't find my pills". Hopefully these pills have an anti radioactive effect.
How about something like the gerch device but instead when it hits the ground it will shoot 6 flames that completely circle it in a firey circle going round clock wise and maybe a tac gren that explodes as you throw it but it just keeps going then bangs once it hits the floor. Ah screw it. I just want a molotov.