I have been playing the original Dread Lords campiagn, and despite having bought Dark Avatar haven't started that one yet

I've played quite a few missions in the campaign and am now in a mission where I'm told the Dread Lords took a great toll on us and the Drengin are now pressing their advantage. It is called Exploitation.

How far am I in the campaign? Can I see a mission tree somewhere?

The thing is I am bored of the campaign, and want to play some random games - but also do want to experience the story arc before starting Dark Avatar

It is very annoying starting at the beginning every campaign mission.