Or they may prattle on about needing more recruits, and of course if you get more corrupted one's they may start to tempt you subtly.
Maybe add a little Erebus and Kor Phaeron types,astartes have a knack for getting corrupted by figures from their past, maybe your chapter master is close to the ruler of the recruiting world or some one from before his past life(before he was a space marine) perhaps as a scripted random event say "A figure approaches after the speech you just gave.Revealing himself to be [some important figure or important to the chapter master][insert title here][insert name here] he says he had much to talk to you about." and here we get to the rolls before hand if the sector has high traitor presence then there's a 50/50 chance he might be a heretic trying to turn you or that heretics are spreading over your[insert homeworld or other place of importance] ofcourse you can always just choose to ignore him or something or kill him when he starts talking about heretics. so the choices here would be "Kill him for talking about heretics,Choose to listen,listen then shoo him out,listen then kill him,tell him to keep going. That last ones a bit tricky cause here he would inter try to convince you of the power of the dark gods and put you on to the "Renegade" storyline or he'll give you some info on where to purge next.
Now on to something new "Knight" worlds,as we all should know some feudal worlds have a 25% chance of having a knight house on them.Knights are for the uninitiated,small titans(still very large mind you) are were created from an stc from before the dark age,Knights are so stupidly easy to make than they can be mass produced whoever only certain forge worlds blessed from Mars can build them(like everything else) well they can go toe to toe with carnifexes and even some of the smaller gargants,what these would do is.... add more of a meat shield so your marines don't have to be everywhere like it wants us to be. they'll respond to requests for help and generally travel with ark mechanicus or imperial battle groups.
also i'm not sure if it got to you guys but we're discussing the possibilities of an hexagon type planetmap(NOT A BATTLE MAP) that would should show where places like hive cities or manufactorum where at.and we even got a artist to do some "Light" work and a we even got battle sprites but then fucked off into the warp.