I remember the days when some user-made campaigns were incompatible to my german freespace:tgw version.
You were able to play a campaign with it... unfortunately it could happen that there were no avaiable ships and weapons and that you are forced to fly a GTF Apollo with ML-16s and Fury/MX-50.
I know that i was able to finish "Alliance fights back" with it, a campaign against shivans... maybe the campaign with the longest missions i've ever played, because a mission takes ages before the last shivan went down to complete the objectives.
Since then, i actually hate missions with ML-16 against shielded enemies
