Btw. I feel really sad about Arcade Gannon. He felt so proud to fight in the power armor of his father at the Hoover Dam battle, just to get in the end kicked out from the Follower, hunted by ncr ranger, the brotherhood of steel and everyone else (at least in my ending). He is a really cool character and - imo - one of the best companions.
Also I loved the part with the enclave remnants. When talking about it pre-release, I really hated that the enclave comes back *again* - but Arcades quest and their appear in the endgame really changed my mind. I still have this one sentence stuck in my head... "getting in, guns blazing, showing the ncr how it's done", damn yeah. And then on the Dam, when the Vertibird comes and all the old people get out of it, fighting. Heh. Really good.