As many of the modders out there know, tactical cooldowns are currently bugged and will cause a CTD if you try to set use them. I have talked with the dev team about this bug and they are aware of the issue. Now, the comment I want to make is about one shot tactical spells/abilities. Tactical cooldowns only cause the crash when they run out, so there has been several mods which have used some laughably high number to do a one shot tactical spell. While this method works, I have found that if you use the tag <cooldown>-1</cooldown> you get the desired effect in what is probably a more correct fashion. I hope this helps all those modders out their make even cooler spells and abiltiies.