Beat it just fine by delaying ogre kills. The problem most people have (and don't realize) is that the two floaters are the only ones who should be aggroing (and shooting) the ogres while relic is not yet obtained. Platformers have NO cover and should crouch/hide on edge of button until relic says go up and join floaters. The two floaters should each take one side of ogres: the front ogres and the back ogres. They should minimize losing LoS with the ogres to keep the ogres from finding a new target, like the relic guy or a defenseless button holder.