Sure, I agree Exodus is probably the hardest mission in the game, but with easiest settings it surely isn't impossible. Erinyes armed with Kaysers and Maxims is all you need. With the guns linked you can take out the bombers pretty quickly, perhaps most even before they get to launch their bombs. Trebuchets might be useful against the Cain that jumps in.
At first take out the Moloch with your guns, it really doesn't take too long. Then concentrate on the bombers. Use afterburners the whole time. If they get to launch bombs, shoot them down with rapid firing Maxims. You don't have to worry about the Cain at first. When it's getting close to the beam firing range, take out its main beam turret with Trebuchets from long range and with guns if you're close enough, before it has a chance to fire. If there are still bombers flying around destroy them before you finish off the Cain. When you're playing in Very Easy you can ignore the fighters, they can't really harm you. Destroy them only when you have a breather from bomber attacks and and the cruiser. You can try ordering your wingmen to destroy the Cain's beam turrets as soon as it jumps in, so you can concentrate solely on the bombers. I tried it but those wingmen are pretty useless, they can't do a poo against the Maras and the cruiser.
Like I already said use afterburners the whole time, as soon as they've recharged hit them again, you need to move fast in this mission.
You should be able to complete it without a single bomb hit to a friendly transport and without calling in reinforcements. I just played the mission and I was doing pretty good. Transport hull integrities were 100%, 100%, 99% and 87%, until at the last minute or so a lone Nahema jumped in pretty close to Lambda 1 and lauched two bombs before I managed to destroy it. The transport survived with 27% hull integrity. Now of course this was all in Very Easy difficulty setting. I usually play in Medium and it's helluva lot harder that way and I haven't been able to save them all in Medium.
