I have bought Assault Armor and Combat Veterans. Is there a consensus of what the next buy is?

In looking them over Shock Trooper looks like the next buy to me. Giving the elite trooper an automatic surge for +2 damage seems like the next step. Anyone have any other preferences?

I like Sustained Fire. It's very effective in getting the last damage needed to defeat a hero. It's even better in combination with the Fire At Will agenda card.

If the rebels get a lot of focused, Riot Grenades can be used to strip them of focused. (Focused must be used in the next attack or attribute test.)

I agree with a1bert. The other thing is endless ranks (I can't remember the name off the top of my head but the one that reduces trooper cost) combined with assault armour makes basic storm troopers so resilient for their cost that the heroes will just not attack them.

This is my favorite deck, my recommended build is:

Combat Medic - seriously the easiest to use and most powerful heal card in the game. However, if the Rebel team is strong at getting focused (Gaarkhan, Diala, Mak type characters) then I would go Riot Grenades instead

Combat Veterans - Such a powerful card, and fun to play on Heavy Stormies/Elite Stormies

Endless Ranks - Getting it third in order is about the time you see the benefits from it, right around threat level 4 is the best because you can now get Elite Stormies in 2 rounds. As the campaign goes on, this becomes more and more useful

Assault Armor - Combo this attachment with Combat Vets and you have some seriously powerful troops. Also works well put on solo on a group of Royal Guards, Trando's, etc

Sustained Fire - Love this skill, an extra attack combined with Show of Force can lead to some powerful rounds and increasing the odds of wounding whichever Hero you target.