You've got a good sense, but its kind of been done
Its been a long year since I played WoW, and It feels great to be hurting murlocs with our cannons, but I find this kind of game has been done before. I really like how your cartoonified the murlocs, and i like how you incorporated there annoying yells. I know this a good upbeat to these kinds of games, just try a bit more originality next time.