Q1. I saw the DOTM once more, and during the final battle between Optimus & Sentinel, OPtimus uses both his sword and a neat looking axe. Sentinel uses is sword/shield. I wonder if Optimus would've used his shield, he probably could have taken the same amount of hits, but without any damage. Another theory is that Sentinel is a wiser robot than Optimus, so maybe next time Optimus will know to use one. Q2. OPtimus told Sentinel that joining forces with the Decepticons isn't the only way to save Cybertron, so what other way could there be?