@masterblaster: heheh thanks. glad to be back with sketches.
@Nupky: exploding bullets rock! make them bigger 
@nxakt: that looks fun, but i actually like your previous alien style concept more.
allright, my last round. Did some ideas sketching within one hour I guess:
and picked one for a final presentation sketch rendering, including a perspective and a simple exploded view:
@all: Enjoy the rest of the challenge!