stick to watching TV classictvfan47, and take a look around at what's available......energy weapons, i think i might be on the wrong site here? and as far as adaquite covering fire goes i think i would prefer one covering me than anything else... taking into concideration of you're souroundings of course. fact is there is a time and place for all types of weapon systems and used in the correct manner including a little overkill to ensure the safety of yourself or a mate all systems work just fine with the right operator.
but you still can't go past a belt fed weapon systom on the firing range....way too much fun at times.