I was disappointed when i saw GG in the movie, and the way he was owned by Obi, cuz in the cartoon, he was kiking ass. If GG's skills in the movie would be same as in cartoon, there would be no way that Obi could even touch him...Sad....and i really liked Grievous. Anyways, Jango wouldnt be much of a help, since GG has armor that is impenetrable to blaster fire. If u saw the movie, ull know what im talking about.
Dude I know that, but thin the are in a flatland, Maul and Jango only have a little amount of trees to fight, Grievous can walk under the bog water and he jump on surprise stikes one to one then go back to the shadows.
In this situation he could kill Jango fast then he have great chace to kill Maul after he push him to the water.