Played the early stages of Operation Anchorage and here's my thoughts about it. You can't pick up the gear of the soldiers you kill since right after they're dead, simulation erases them. You have to pick up weapons, ammo and health at specific locations. (there are plenty of those around) You get the gauss rifle pretty early in the game, and it's AWESOME! You have to reload it after each shot so you got to use it carefully, it fires a blue bolt of energy that explodes on contact, really cool animation. Those Chinese boys in stealth suit are a real pain, the suit acts as a big stealth boy so they're really hard to spot when they're moving around, you usually only spot them when they get really close to you or attack. The new setting in a snowy environment is a great thing, it's a nice change from the radioactive brown world of the post apocalyptic DC. Getting the new perk is really tricky since you have to look everywhere to find them. In the first part of the DLC, I've collected 1 out of a possible 4 intel suitcase. (have to redo it from the start)
Played a little more than 1 hour, so far, it's more than well worth the 800 MS points, and the time toying around to make it work on the PC... Plus, getting to the mission itself was a really fun experience, as you have to assist a few outcasts to fight their way through a horde of super mutants to actually get to the base where you will begin the simulation. So if you have Fallout 3 (on something else than a PS3) you really should give it a look, it doesn't disappoint.