Quote Originally Posted by Monk View Post
Yeah they kinda wrote themselves into a corner with ME2 and Cerberus involvement.. not at all surprised.
I always felt the Cerberus involvement in ME2 was not entirely..."natural". It wasn't unbelieveable, but they were really portrayed as evil in ME1, nothing about humanity's interests at heart. Felt like someone at Bioware had a soft spot for Cerberus and really wanted them in.

Spoiler Alert, click show to read: 
Another 180* with Cerberus now after, in my opinion they tried to paint Cerberus in a more positive light or rather being more "gray than black", has to be believeable, because there are definitely some Shephard savegames out there with a pro-Cerberus bent.
As for characters, I can't see Wrex or Liara becoming squaddies really, as Wrex seems to become the new Krogan Overlord, while Liara is the Shadow Broker. I'd say its more likely you go to Wrex and ask if the Krogan can help you attack the Reapers (Reapers being the most dangerous enemy around, should suit Krogan real fine) and Liara being Shadow Broker, one you can get lots of information from.