You could give it a try on my "Trip to hell part 3"
If you complete the mission, it might take from 1/12 to
2 hours and the mission features a few different objectives.
clear town, free some prisoners, escape to extraction point ...
weapons selection at the pre-briefing by the groupleader.
Especially the "free some prisoners" part requires well timed
teamplay, as the prisoners getting killed once the russian guards there are alerted.
Unfortunately i for myself found a bug in the mission, but this
bug doesn't affect the mission, so i never fixed it. The bug just
lets some enemies arrive a bit earlier than i expected.
You can grab it here:http://www.ofpec.com/missions_depot/index.php?ID=497