As a mid level engi (136) I ususaly run Hi QL mission (For the moment lvl 176) but I have now played 2 solo missions and 1/3 of the mobs is my level, 1/3 is usualy orange and 1/3 is red (The one I meet 90% of before 14.6) Is it my bad luck or has something changed in the way mobs spawn in missions?

If it has changed I would like a reason for this?
Is it becouse Engies was able to level at the same speed solo as other would do in team? (Eemeber that a Engi in team is tragic....)