Does playing Auxillary missions have any effect?

[Commie 0]

Was wondering if doing the auxillary missions makes a difference in the main ones. I try and do all the missions anyway, but have come across a situation early in game where I can only do one auxillary mission. So I wonder if my choice affect the level and types of enemies I face in the main missions?

I see that the little + and - descriptions don't change, no matter if I do the missions or not, thought maybe it would update to tell you that rather than facing 2 armoured units, you will face one or something.