I'm just about to play Overlord now (when it finishes downloading, sigh). I'll write up some impressions as I go, and a final mini-review at the end for people who are still on the fence about paying 560 MS points for it.
- The initial cutscenes are polished and well put together. The planet information and codex entries build a sense of the location where Overlord is set.
- The level design is fantastic and chock full of quality. Bioware has clearly put a lot of effort into making the locations feel realistic.
- Minor complaint: I'm getting a little sick of side-missions being an endless stream of "we've lost contact with [Base X]. Go solve all its problems!"
- New music. I love it.
- There's a palpable sense of unease... the player is literally being watched, and it's a fairly tense mission. Loving it so far.
- Legion has new combat dialogue. Urgh. His accent has changed and I'm not a big fan.
- There are some awesome set-piece battles in this DLC.
- And a few one-liners from Shepard! :D
- Wow. Some of the outside landscapes are AMAZING.
- The battle music is some of the best I've heard in a game. Ever.
- The sidequest is a little dull and uninspiring.
- Lack of a save function in the Firestorm is really, really annoying.
I'll admit I was initially skeptical about Overlord's premise as a DLC pack. But this mission pack certainly doesn't disappoint. There's good use of the Firestorm vehicle, some great combat sequences (espeecially early on), and some fantastic story elements and plot twists to deal with.
- Bioware really pulled out all the stops with the graphical and audio side of this mission. The environments are almost all new (no recycled textures or base models); the sound is excellent and there's even some new music tracks to boot. Some of the landscapes you traverse in the vehicular sections of the mission are very well put together.
- The plot, without revealing any details, is moving and scary at the same time. The tension builds throughout the mission as you slowly piece together what happened, and the ending is a very satisfying conclusion. I'll freely admit to being easily spooked in video games, and some of the moments in this game made me jump a little.
- Combat is mostly good, the repetition of enemies is somewhat annoying and as always fighting in the Firestorm is a real letdown. Unlike the Mako we have no HUD, no health bar and it's impossible to save while driving it. I attempted one part of the mission at least 4 times (taking ~30 mins) due to the lack of a save function.
In short, get this DLC.