Changed the core ability to Relentless to bring it closer to the Psi-Sentinel class.
Whistler is rolled into Bandolier by default, and Bandolier can be selected as a perk at Corporal.
Added support for a three path upgrade tree (optional).
Shifted a couple of perks around. "Open Fire", for example, is now only available in the three tree version.
Added Crisis Mode.
Added Shadow to Shadow as the new GTS unlock.