This is a many times over duplicate thread, but here goes:
Firstly, you MUST do all three ship armor/weapon upgrades. Each missed causes a lost squadmate.
Let's assume you did this. Waiting to go through the relay costs you crew lives, not squad lives. IF you go immediately, every crewmate lives. Waiting even one mission costs you some of your crew. Not your squad.
The deaths once you are on the Collector base are due nearly entirely to the choices of squad members you make during the various segments. The game is actually pretty nice about telling you who is best for each part - they volunteer. If they're not loyal, you risk death. For the tech expert, choose a loyal Legion or Tali, or another squad member dies. For the fire team leaders, you must choose a loyal Miranda, Jacob, or Garrus. For the biotic, the only ones strong enough to maintain the bubble and keep everybody alive are Jack and Samara.
Then you choose an escort. We'll get back to that.
Now for the final fight. While you fight, your squadmates are fighting. The have a number assigned to them for total defense. This is based on a number for each character not in your party. Some characters are obviously more defensive than others. Grunt, Garrus, and Zaeed are quite defensive, while Mordin, Thane, and Jack are not defensive. Every minute or so you're fighting the boss, a dice gets rolled. If you're unlucky, the weakest defensive character fighting dies. Your odds get better the higher this defensive score is. So, essentially, you want to have the least defensive people in your party, and the most defensive holding the door to up your odds. Loyalty also seems to increase the defensive score. So, its the time that you're *fighting* that matters, not the time waiting to go through Omega 4.
Mordin is by far the weakest defensive character. He is very likely to die if he is not in your party. However, there's an out if he's loyal. He's stealthy, which makes him a great choice to escort your crew out. This will keep him alive for sure.
Modifié par Tisiphne, 16 février 2010 - 07:52 .