Ok thats definitely my problem, but damn this game doesnt explain ANYTHING. I just found yesterday there is a combo system in the game; not from the game itself but youtube. Also, it is possible to get 2-3 consecutive commands in Tactics mode and no where in game does it mention any of this.
Actually ... many of these details are explained, during loading screens. Thumb through the "tarot cards" on screen. At least in my case, the one about combos happens annoyingly frequently. I've seen it at least a hundred times. You can also read them all if you want by looking at the Codex/Tutorial section. Don't ask me how to open the Codex, I have to rediscover it every time (on PC).
EDIT: They are also listed here:
http://dragonage.wik...odex:_TutorialsNo, you can't queue up multiple commands in Tactics. You're lucky if even one command works the way you want.