I decided to post this mission because I thought it went very well with the players plan. (note: the guards never spotted the characters so this whole event took place in narrative time)
The mission was Hervara HV-2: recovering the Promethium from outpost Hervara 20.
The squad:
-Commander with a powersword
-Breacher
-2x snipers (1 with a long las, 1 with a sniper rifle)
-Psyker (player plays this character as an old, insane man so he mainly stayed back throughout this mission)
The players took up position on a dune overlooking the outpost and watched for several days until they learned the patrol patterns and schedule of the base's occupants.
After their observation the breacher and commander snuck forward beneath one of the guard tower while the two snipers gave covering fire and stealthily took out the two guards in the first tower. The breacher planted charges on the gate while the commander rigged a line to climb up the outer wall and into the first guard tower.
The snipers repositioned and took out the two guards in a second guard tower, then moved up to the first guard tower. With little a little difficulty the players scaled the first tower and climbed their way down into the base. Once inside the snipers took out the two guards in the remaining towers and the players moved up to the promethium trucks and tanks. While the breacher set the charges on the tanks the remaining players got ready to start up the trucks.
On a signal the players started up the truck as they detonated the charge planted by the gate to draw people away from the vehicles. They started the trucks and drove away before detonating the charges on the fuel tanks back in the base and killing the remaining people inside.
any orks in the area were drawn to the explosion so they kept low for a bit before heading out and making it back to Hervara XIX without too much incident.