I captured all three cargo containers and got all three cargo container debriefings. This was the most obvious true bug, though there are a few things I reccomend you change. So, in no particular order other than when I think of them:
You need a background, but I assume that'll be added in later.
Very few spelling mistakes (I couldn't spot any, and Word agrees when I ran the mission through it), though I think Alexus should be Alexis, and you have one instance of Eryines rather than Erinyes.
The end was a little boring - several minutes with no enemies might be realistic, but it wasn't particularly exciting.
Try transferring the Boading Party cargo from the transport to the cruiser and back again at the relevant times. Tiny detail, but those are what make good missions.
Why did the GTVA simply destroy the Alexis? It was a Leviathan in relatively good working order (I had it disarmed and disabled well over 90% hull strength). You'd be better off leaving one of the fighter wings behind to guard it while command "Organizes a recovery op."
Finally, the mission was a little easy. Pulling the Kayser and maybe the Erinyes would make it a little tougher, as would a few more hostile fighters going for the cargo. If I can complete a mission to its maximum specs on my first go, it's not hard enough (I'm far from the worlds best FS2 player).