Maybe Grimlock uses his shield to push the titan back, then impales it with his sword. With the titan temporarily disabled, he uses his fist to rip open the cabin, and pull the pilot out. There, he crushes him, and collects his collor. With the titan out of the way, Slade is easy pickings. Grimlock reaches down and grabs him, crushing him in the same manner he killed the pilot. that's what I got for my Idea's