i would like to see x4 come out with a "C4" that stays around when you die so that when you respawn you can still set it off. I know theres something similar for the claymores but i think the c4 also needs somewhat of the feature also because as it stands. If i you die and you threw a c4 before death its gone when you respawn you can't set it off.
Just my 2 cents, hope it can be worked out!