Commissars. Every player wants to be one. Every group somebody complains they don't get to be it. You just cannot escape them. They're one of the most (if not the) iconic parts of the Imperial Guard, and indeed the Imperium as a whole.
But boy do they feel out of place.
In Only War, its a squad based game, with your jackboots starting from the bottom of the pit, who could be nothing more than green conscripts with some basic training in them, especially if they're starting at Level 0. As strict as the Imperial Guard is, contraband like Iho-sticks seems to imply its not as "take another sip of water and lose your head" as the Grimdarkness seems to imply, and Guardsmen do obviously do their own things among each other like gamble, sometimes brawl, and cheat the armoury chief out of some extra magazines.
But still I come back to ye olde problem. Commissars in this scenario just feel so out of place. It seems so weird to have one of them just lounging with the regular greenies when things settle down back at basecamp, and both myself and the player don't want to segregate the players 'that' much either. As well, players also run into issues of just how they roleplay out their troops… there's less casual banter, less remarks, less character development (if anybody says anything at all) just because the Commissar standing over them ICly (perhaps rightly) makes them straighten up and act like drones. This problem also exists to a much lesser degree with Sergeants, but at least those players seem to be more relaxed and treat it like Sharpe rather than Full Metal Jacket. In some scenarios, I have to rewrite the NPC reactions completely just to accomidate them. The Captain in Final Testament is probably the best example of that, with his entire personality needing to be changed (at least how he acts to the PCs) to make room for the class.
They just feel so out of place in Only War. I'd hazard a guess FFG felt compelled to put them in just because… well, they're iconic, much like the "They're Not-Commissars, but kind of are" in the Inquisitor's Handbook for Dark Heresy.
But they're so popular, and so I run into an issue of barring them completely and getting more than a few irked players, or sacrificing the roleplay element almost entirely outside of playing 'steely gaze, with shooting'. Any suggestions?