This weekend the local HMGS-South group played a WWII game set in the underground sewers of Stalingrad. The command activation and weapon fire rules from Bolt Action were combined with the movement system from Space Hulk. Three German squads and a heavy weapon team were tasked with clearing four Russian squads and a heavy weapon team from the sewers. They were also to locate and destroy a munitions cache. The result was a bloodbath, with only five surviving Germans and no Russians.
Here is a reference sheet for the rules (with some post-game modifications) :Skirmish Test revised