I just started the campaign as the imperial player using Power of the Dark Side, and we have to play the side mission Preventive Measures. The thing is, I'm reading it and it seems its impossible to win for the empire. MHD-19 can just cure 5 health o 3 health every turn the mission token they have to rescue.

I'm thinking of trying to stun it with imperial guards and to deploy powerful creatures when the final doors open. The problem is that I will not have too much thread, only 8-10. I'm thinking of deploying a Dewback Rider for his shock lance ability and its three dice, together with some other damage dealing deployment. Maybe the Wampa? the problem is he has a hard time catching up, I could also deploy it when the mission token is heading back. Maybe Weequay Pirates? But they may not deal any damage against a black and a white dice, and again, I will only have 8-10 thread.

Is there something I'm not seeing? It seems that they can heal the mission token every turn, and having a black and a white dice makes it really difficult to kill. Also, the map is really strong, so the imperial player doesn't have many turns to kill it.

This poll suggests it is winnable 58% of the time ?

boardgamegeek.com/thread/1512996/poll-how-balanced-each-scenario

I haven't played it though, so no advice unfortunately. But at least there's hope!

I have read from the few threads discussing the mission that the surest way for the imperial player to win is to have a good attack or two as soon as the door is opened.

I would also consider ways to deal indirect damage (Relentless, Shock Lance). Weequay Pirates are consistent, but 3-dice attacks like elite Jet Troopers might still be better.

Depends on the class deck too.