I have the game Attrib files extracted to XML, and I figured I'd try to look through and check the numbers and other effects in some of the abilities for fun. Damage, radius, duration, whatever. I'll probably write them down somewhere. If anyone has anything in particular they'd like to know about, suggestions are welcome.
Only one I've done so far: ASM Charge Leap (Venerable Doctrine): Squad jumps in a line up to distance 40, dealing 75 True Damage in a radius 3 along the path of the jump. During this time, they cannot be knocked back and they take 75% decreased damage from all sources. cause_criticals: true; crit_weapon_type: small_arms
Also, here's the keydefaults for anyone interested in that: https://pastebin.com/jyEZqDfm
It is in the 'Data\game' folder. Not sure if you can make a mod file out of it, but there ya go.
Just to be clear, it doesn't seem like you can actually change individual ability hotkeys. For example, the ASM Charge Leap has the hotkey: hotkey_name: "R"; so it doesn't actually reference the keydefaults.