That sounds awesome.
I really think the boost jump negatively coloured people's options of an 'exo suit'. Heck the boost jump wasn't even a constant part of the exo's in single-player, it's just that it was incorporated into multiplayer in an attempt to improve 'verticality'.
But that isn't Call of Duty's issue. There's a 180 degree or so arc of engagement in Call of Duty, and the boost jump adds a 90 or so degree arc of engagement vertically. For a console shooter it's just too much.
The dash ability is something I want to see in more shooters, though. Being able to dash backwards and sideways really helps player survivability, and adds a lot of skilled play to Call of Duty. You can dash out of a doorway, dash to avoid gunfire, dash into cover, all whilst keeping an eye on your target. It doesn't even really need a robot suit explanation; Dying Light implements it well, for instance.