That is silly. He didn't permanently take it off! He will put his armour back on and off between missions!

Yep cause in every halo game so far he takes his armour off in between missions, e.g. like in the middle of a jungle

Not as in levels. Missions ie. like mission destroy the halo rings. Mission defeate Didact, leave Requim, save Earth. He doesn't just sit around in his armour permanently when he is having a snooze or a sandwich. Its just like soldiers don't wear their combat uniforms all the time.

Yeah but if you think about it, at the end of 4, you would of thought it was done. Cortana died, he saved earth and such. And by the way he took off his armour, I just thought he gave up, or just to be 'human' again instead of being a 'machine'. He looked pretty old and I don't honestly think his going to last in the new halo because of new and improved Spartans ( maybe there called guardians now ).