Using the info in settler wiki, these general can take 150 troop.
Nusala with 150 xbow can do about 12150 first strike damage.
I just roughly go though VLT and could as least find 6 camps that can be taken down without loss.
(2nd camp in area 1, 2nd camp in area 2, 3rd camp in area 3, 1st 2nd 4th in area 4)
save more then 1k recruit.
not sure if this is too powerful.....