Can you show the defensive stats for some typical enemies? Do they go over 250 (on Dominating?)?
Mental Subversion seems to be conclusively garbage though.
Dunno. Resolve is based on level and will. Scanners might have around 250 on dominating. If you're playing pure psi and always maxing will, you'll probably overpower the resolve of roughly equal level enemies throughout the game. Few unique characters and mid-game lunatic encounters are potential exceptions. And who knows what we'll find in the Black Sea?
Mental Subversion is p. shitty feat to pick, yeah. Single-player games are usually asymmetric in the way that the player persists and other combatants die quickly, so effects that slowly build up and linger end up being more powerful when used against the player. Not that Underrail does much of that, either. IMO mental subversion would be a perfect mechanical and thematical fit for the endgame battles towards the boss, but for whatever reason scanners don't have it.