I think it would be to much work to use a tomahawk. Why would you want to use all that energy chopping someone up when all you really need to do is pull a trigger with your finger and keep on walkin or stay on couch.
A tomahawk is more involved and = more fun. I actually only use a sledge hammer with 6 inch spikes welded on but that is just a personal preference.
All I have in this world is my balls and my word and I don't break em for no one.