Through an AC fan filter, the official reviews out there aren't too far off. It missed the sweet spot in of old and new.
1. It is part ps2 AC and AC 4 with a little too much chromehounds thrown in.
2. Progress to new parts is stunted by the fact that you must join/ create a team and build up team points.
3. If you aren't lucky enough to know atleast 4 people in your state that plays this, actually doing anything outside of mercenary work is hard.
4. Comparatively there is a lot less dodging and more hiding behind buildings.
5. For better or worse, sniping range is greatly reduced.
6. Weapons can be tuned sort of like AC 4 on your mech, but only when purchased so you might have to buy multiple copies of a given weapon.
7. No more quick boost spamming.
8. You cannot fly. You wall jump and glide to places.