Mob rules and player controlled NPCs

Mark Knights blog post mentioned the GM Tips G+ community discussed who controls NPCs and hirelings associated with the PCs; according to Mark the Ultimate Campaign book for Pathfinder suggests that hirelings/associates with a less than helpful attitude should be controlled by the GM. This started me thinking about the way I normally represent allied NPCs and some recent changes I have made using the FATE mob rules in my Rogue Trader FATE game.

In my own games I have always been of the opinion that background characters and other NPCs who are not strictly antagonistic to the player characters should be controlled by a player since they generally stay in the background so as not to overshadow the PCs (who are the games main heroes/characters, after all), generally helping or hindering in certain situations depending on what they represent. In FATE core and FAE it is pretty easy to create an NPC using the cut-down rules for mooks and NPCs in both books and hand an index card with the details written on it to the player so that they can run the NPC as an adjunct to their own character; however, I do make it clear in my games that, at any point, I can re-take control of the NPC or their actions as required by the plot or should the NPC take a more antagonistic stance towards the player party. This generally seems to work pretty well, it lets the player feel that they are contributing towards the actions of the NPCs, frees me up from rolling the dice for allied-NPCs and still allows me the option of assuming narrative control over them should it become necessary for the good of the story (although I generally limit my input to occasionally portraying the allied-NPCs during conversations unless it is something important or the NPC is separated from their associated player character and I wish to keep the outcome secret).

Handling lots of allied-NPCs

One of the things (IMO) that makes Rogue Trader stand out from a lot of the other WH40K RPGs put out by Fantasy Flight Games (aside from perhaps Only War) is the sheer amount of NPCs that the characters have available working for them; it is true than in Only War the players along with allied-NPCs represent an Imperial Guard regiment, however, in Rogue Trader the player party owns a large space going vessel with hundreds of thousands of crew members, guards, pilots, engineers, etc. This can occasionally prove problematic in a game when the players insist on taking an armed party of guards with them whenever they go on a mission off-ship (or something similar); as a GM I don't want to disallow this because it makes sense when viewed in an IC context, why on earth would you only take a handful of people when you have trained warriors at your disposal? That's just dumb and a licence to get yourself killed.

Previously i've handled these situations (especially those involving combay) mainly through GM fiat, and have basically had the PCs fight some opponents and have had the guards (or whatever) mop up numerous additional mooks (without really using dice rolls or anything; recently however I have been reading up on the mob rules of the FATE core rules (page 216 in the FATE core rulebook for anyone interested), a system for 'clumping' together similar NPCs and treating them as a single entity. 

The rules for mobs basically say that you roll one set of dice for a mob, they may use teamwork to increase their skill rolls and that any stress inflicted that goes beyond that needed to take out a single member of a mob, rolls over to the next mob member.

For example: If I have a mob of 5 mooks with Fight skill +1 and no stress boxes attacking the player characters, then I would take their basic Fighting skill level of +1 and increase it by 1 for each member beyond the first that was helping, for a total Fighting skill of +5. If the mob was attacked back then, because the members have no stress boxes, each level of stress would kill a single mob member (also lowered their skill).

This is a great way of representing groups of NPCs such as the nameless guards that Rogue Traders take about with them; dice rolling duties for the allied-mob can be turned over to one of the players who is commanding the mob, or often I will turn the dice rolling over to a player whose character is not directly involved in the current scene since it gets them more involved in the attack on an OOC level. I tried this for the first time during my last session when the now deceased Chief Confessor Cornelius rounded up a mutinous, pipe-wielding mob of nine people onboard the spaceship Venerus and headed to the quarters being used by the alien (Eldar) ambassador Da'Duith Iath intent on meting out some mob justice on the unfortunate alien. During the first round of combat the Eldar was barely able to fend off the +9 attack bonus of the howling mob, and only then by taking a hefty stress hit and a severe consequence; the alien in turn dispatched six of the mob, but had taken such a lot of damage that he was easy prey for the remnants of the mob (backed up by the Confessor) and was torn to shreds.

For me this combat worked just the way I wanted it to, the Eldar, although skilled and would have no doubt made short work of a single opponent, was unable to prevail against the sheer mass of the mob bearing down on him; mechanically the combat was quick, easy to adjudicate from a GM standpoint, and it took into account the followers that had been gathered by the Confessor, his actions in rounding up the mob making a major difference to the scene. It's certainly a rules system that i'll be using in future to represent guard parties, fighter wings, etc and highly recommend it - I may even be adapting it for my space rules and representing opposing fleets as 'mobs' of spaceships.