Why not both? (I can dig it)
There's also for old school ridiculousness Surf N*zis Must Die, available in full for free on Troma's youtube:
It's really dumb, but so's 40k so...
Also for Titans there's Robot Jox:
Also also you should watch [URL="https://www.youtube.com/watch?v=lIT4_wncEbc"]Jesus Christ Vampire Hunter[/URL] - the greatest action comedy horror musical about the second coming.