Lets see, lets see...
One time got in a fight with a vampire in my "apartment", and killed him via somersault-kick out the 7th-floor window (it was a novice vampire). Cut away to later, where I have to break into a barn, fighting off his angry friends as I try to steal a mirror. Scene finishes by big escape by van, one leg kicking a female vampire that was hanging on to the door. I remember waking up with a gasp, clasping at my neck to make sure I wasn't bitten.
Another time I'm a moderate dog moreau soldier fighting my way through a MegaCorp science facility, blasting flying drones with an M4. I hurry my way up the floors when I here something big making its way down a hallway, only to see the body of the woman I'm working with lying on the floor ahead of me. Sensing an ambush, I silently creep down a secondary hallway nearby. Catching the guards trying to ambush me on the flank, I dodge-shoot two with a short burst each, with the last throwing a grenade at me. I catch the grenade mid-air, clothesline the guard, and jam the grenade into his mouth before scrambling away. I wake up just as I pick up the woman.
And then there was a time I dreamt that I was a hot-shot undead hunter, making my way with a group of survivors to a fortified hospital. The place is, unfortunately, under siege the moment we get there, and I have to help clear the place out. Just as I make my way back through a hallway with a collapsed ceiling, the zombies break the barricades, and I'm forced to flee. I had just shot a snobbish business man who was starting to turn and was about to exit the building when I woke up.
One that has stuck with me for a while is one where I somehow got teleported to some sort of elaborate underground cave. I find out, via pleading-talking-head-made-of-sand-flying-upwards, that a goddess of some sort is holding a seal to eight big bad titans, one of whom is currently using zombies to overrun a base made up of some other people who got transported there themselves. The base includes part of a trailer park, some scientists, and a battalion from the German Army (I think anyways, from all the MP7s and G36s lying around). In order to survive, I need to help defeat one of the titans to eliminate the zombie attacks.
After working my way down a cave to catch up to a squad of soldiers that had gone ahead, I find myself fighting for my life against this giant Nurgle's daemon-type thing, fighting off a horde of zombies while I use munitions lying on the dead bodies of the soldiers to damage the titan. After a few tense minutes, and a truckload of bullets and grenades, the giant rotting thing finally dies.
Unfortunately, the route behind me had caved in. Fortunately, a glowing circle had appeared where the boss had died. Stepping into the circle (after refilling on ammo), I started floating upwards in a very Legend of Zelda type way.
Finding myself in a golden garden of some sort, the goddess thanks me for relieving her from needing to hold one of the seals, and that life was now starting to return to the part of the cavern housing the base, creating a clear path to the next evil titan needing slaying. Giving me a charmed statuette of herself, which she tells me will allow her to funnel power to me, she then sends me back to base.
Back at the base, I find many plants, trees, and vines are now growing everywhere, including a vine ladder to a ledge we couldn't reach before.
Then Ellen Degenrus (sic) pushes me into a lava flow and I wake up.
Sometimes my subconscious keeps very strict sleeping schedules.