After playing the Gears 3 Campaign I was left with the feeling that we large parts of the campaign were left out. Sure the game has always revolved around Marcus and what he is doing, but when members of Delta just disappear on their own missions I am left wondering.
When Baird dropped the tickers on the Lambent Leviathan, Delta 1: (Anya, Jace, Dom, and Marcus) had to jump ship. Now we know Marcus and Dom washed up on shore and were found by Delta 2: (Cole, Clay, Baird, and Sam), but what happened to Jace and Anya. Later they are found with Prescott, whose been shot, but how did they get there? What happened to them, and Prescott for that matter.
When Delta 2 found Delta 1, Marcus ordered Sam and Clay to head off and search for other survivors. We don't see them again until Anvil Gate, but what happened to them? What about the other survivors from Sovereign? That was a big ship and several Ravens made it away, along with all the lifeboats that were launched.
Once Prescott died, Marcus, Cole, Baird, and Dom headed off to Anvil Gate. Anya and Jace stayed behind to help with the survivors. That seems like a perfect opportunity for a story to take place. Anya, Jace, Clay, and Sam helping to regroup the ship's survivors. Gameplay could be moving from lifeboat to lifeboat, searching for supplies in the wreckage, or rendezvousing with the Ravens.
After the battle for Anvil Gate, Cole and Baird were sent away to find reinforcements to help take Azura. We saw the Gorasni show up (with their own Raven's Nest--something that totally contradicts the books) with a ton of Ravens and Gears. Those Gears could have been part of the groups that Anya, Jace, Clay, and Sam rescued from the Sovereign. However, they could have also came from the other COG settlements set up at the end of Coalition's End.
Long Story Short
Two gaps that need to be explained through DLC, or Comics:
Sam, Clay, Anya, and Jace : Save survivors from the Soveriegn
Cole, Baird, Clay, Alex Brand (maybe) : Searching for reinforcements to assault Azura.
What do you think?