2 awesome moments in 1 game:
I was playing Emperors Children against Tyranids in a cityfight. The Tyranids brought 2 gargantuan creatures (giant raveners called Trygons) and some gaunts and normal raveners. I had 2 defilers, 2 12-man close-combat squads, 2 heavy weapon teams, and a sorceror with a fairly large retinue. The \'nids deployed via deep strike because they were burrowing into thte city.
Awesome moment 1: One of my close-combat squads got swarmed by a trygon and some gaunts, but they ended up saving 27 of 30 wounds, killing the Trygon, and winning combat.
Awesome moment 2: The next turn, I annihilated an entire squad of raveners with a single shot from a battle cannon.
I fight tyranids a lot, so I\'ve become fairly adept at killing them.
Another thing I like to do is when I play Alpha Legion, I deploy a single Preadator and infiltrate the rest of my army. It confuses the hell out of my opponent. The tank works like bait for enemy heavy support, and enemy heavy support works loke bait for my raptors, which can assault on the first turn if they infiltrate close enough.