The Cadian 412th was fighting the Eldar for some platform thingy in the middle of some swamp on some planet somewhere in the asscrack of the galaxy(because what else would the Imperial Guard be doing?)
I send two squads north of my base to grab some strategic points, followed by a Techpriest to fortify them. Meanwhile, the Eldar grab the critical point, then rush my base with what appears to have been their only squad. One squad is called back to kill them, then after all points north are secure and my hero unit is called in, I rush the platform and take it from the Eldar. The xenos counterattack, force me off, but they extend too far and get killed.
Meanwhile, I bring in a Basilisk. Using it to cover my counter-counterattack, I re-retake the platform.
...And they counterattack again. Only this was a sloppy one since they divided their forces to also attack my northernmost strategic point(fortified with heavy bolters, reinforced with a Techpriest for repairs) while my Basilisk tears up the rest. They eventually force me off through sheer numbers(Eldar outnumbering IG? Dear Emperor!). They make several attempts to recapture the strategic point...
Only holding the point gives LoS to it, and my Basilisk was in range. Every. Single. Squad they sent to uncap it from me got blown away. By the time *I* realized that was happening, it was already too late for them.
Imperium victory. Total losses: Eldar - 92, Imperial Guard - 109.
Warhammer 40K: Dawn of War: Winter Assault. Map was Edemus' Gamble.