On mars, just jump and time for the R2 attack to hit/kill two out of the three hob goblins. From there, quickly run to the last remaining one and R2 attack while on the ground to finish them up. Run back up the stairs to cleanse team mates and proceed as normal. Just stay calm, being level 30-32, you can take two to three hits from the hob goblins before you're dead. If done correctly, you should take no more than one hit from the third hob goblin. Best wishes man. Practice makes perfect.