I am sure this has been talked about at length.... but I am new to the game and the forum so I am going to go into again.
As the IA player why take anything but the Subversive Tactics? Being the Rebel player in the games I have played I can tell you it is horrible. As the Rebel player most of the games are timed which means you have to move fast. So things that slow you down hurt, and with Tactics you have a card that gives bleed for 1 XP at the start is brutal because you are either taking strain all the time or damage, unless you waste a turn to remove it. Also as a Rebel player to do your cool stuff you need Strain, and the Subversive Tactics gives out tones of stain out which means you have to rest all the time, or not use your abilities. And then if you become full of strain and not remove it then the strain just turns into damage. So then it becomes 3 fold it slows the player down, it limits the use of their abilities, and it can cause damage.
combine this with some key figures like Heavy Troopers and Trandoshan's and the Rebels do not stand a chance... It has been by pure Luck that we have been able to win a game with the IA player is using Subversive Tactics. Where when we have played against a different IA type it has been more even.