Makoa It's really effective in short distances, so try to be far away from him and throw it Sticky Bombs in the distance. With the Demolition Talent, you can destroy the shield of Makoa really easily with the Grumpy Bomb.
Always reload before using [Evil Mojo], as you only get a short amount of time to kill off everyone affected. It is also a good idea to save it until multiple allies are nearby, if at all possible.