I actually expected this to work- spoiled Doom player, me - and died trying.
BUT: it would probably sort of ruin the targeted difficulty level for defeating the animals. The zapper and later the ... uhhh .... something-something gun hardly hurt the anmials and I suppose that is intentional.
Personally I don't like the way you have to deal with hostile fauna anyway, but that's probably just me. I find it too hard given that it's not the primary or even really a secondary focus in the game.