I'm running a campaign using just the Core set, and have played through the same campaign as a Rebel player. Both times, the Imperial player won not a single game. So, what are we doing wrong? For reference, the Rebels are using Finn, Gideon, Diala and Garrkhan. I'm using ... I can't remember the names; the Upgrade dack with Combat Medic and enhanced armour, and the Agenda deck with ISB Agents in.
A couple of missions have come close - but only in that the Imperial side nearly won. I lost the penultimate mission last week (the one where General Weiss starts off in a corner and his AT-ST comes up in the lift) foolishly by moving him out of his office too early, so he got gunned down by Saboteurs, but in other missions, it doesn't seem like I can do anything; I deploy troopers and Finn or Gaarkhan can kill off an entire Deployment Card-worth of models in one go, and if that fails, Gideon tells them to try again.
So, what have I done wrong? Did I screw myself over with my choice of Upgrade and Agenda decks, or am I just not very good at this game?