JUMP… For My Love
There can be little doubt that the addition in Call of Duty: Advanced Warfare which has the most impact is that of movement. Yeah, you can still sprint or go prone but the shining and brand-new Exo Suit strapped to your back grants you the ability to double jump. This is your best friend. Without your Exo Suit, you are useless. Without you, your Exo Suit is useless.
Every single map of Call of Duty: Advanced Warfare has been built in an even more multi-leveled way than before. Tarzan-wannabes are able to leap from roof to roof with a simple tap of the jump button. Admittedly it isn’t totally open. Certain parts of the maps are inaccessible due to mysterious barbed wire or walls. For the most part however, if you can see it you can jump to it. This changes up the game for long time players as they can get to their vantage points quicker. It also changes up the game for those who wish to hunt these people out, as getting to their positions is much less of a slog.
You can completely eschew this new mechanic if you’d like and still progress fairly well but your opponents will always have that advantage. It can take a few games to get into the swing of double jumping and the subsequent descent (which can be sped up into a slam by crouching). When you’ve cracked it, Call of Duty: Advanced Warfare becomes a much better game for it.