I remember from the books (FoR?) that the Spartans wore the same armor but could recognize each other and that they had little gestures to indicate emotions to each other. Specifically they could smile by holding a hand to their face and using the extended thumb and forefinger to create, in essence, a smiley.

I imagine it would be a big deal for the Chief to find out that Blue team still lives and to hang out again with his friends. He thouht that they were dead (right?) and he had to do so much alone (well, with Cortana).

He handled it fine but I'd like to see somewhere in the game, where it is appropriate... that one of Blue team smiles at the Chief and he smiles back.

It's a little thing but I'd like to see it. To see a moment where he is happy and connected to another person.