Here are a series of battle reports for a mini campaign set during the Heresy Era for 30k. The twist is that this takes place in an alternative timeline that he has been playing with his gaming group and as such the legions have different alliances. Full details of that wide scoping conflict can indeed be found here.
So my friend was playing Imperial Fists, and wanted some games against
my Imperial Fists. My Heresy Era Fists have always been Sigismund
centric, whereas his would be based around the leadership and
philosophies of Alexis Polux. Essentially for this alternative campaign,
my forces have been stubbornly Loyalist, whereas Polux wants to join
the Secessionists. Sigismund being the exemplar of rational thought,
will suffer no contest or shism in the ranks and plans to hunt down
Alexis Polux and the Imperial Fists that have joined his cause.
A rather interesting take, and a sort of civil war to essentially purge
the ranks and reinstate the mission and philosophies of the legion.
Should be interesting!
Here is a list of all the battle reports from the Dissent in the ranks Campaign. Unfortunately we never got round to playing some of the final missions planned, mainly due to life, but perhaps one day I will get there and add them to this collection.