The one referred in Post #2 is a vanguard at level "9"
the one in Post #1 is a vanguard at level "8"
Since level 9 is greater than level 8, it is but obvious that the difficulty of the vanguard increases, and hence the number of creatures also increases . . .
vanguard of barbarians{1} has 50 wolf raiders. Have you ever even played it?
You are lvl 12 player you should know that vanguard of barbarians{9} has 205 wolves and not 43
actually its not fixed guys
they actually don't have specific recruit
if wolfs are less there were more rocs and ogres
its true that difficulty increases but not true that vanguard of barbarians{9} has 205 wolves and not 43