by Scorpion0x17
LOL.That would make any scenario a tad easy!
However, even playing that rule correctly Grindhouse is one of the easier scenario, so easy in fact that Guillotine Games have issued a revision.
See: http://guillotinegames.com/en/gamestuff
(14th item down - and, whilst you're there, you may want to check out the other revised scenario (Y-Zone, the one directly above the revised Grindhouse), as well as all the other additional scenarios)