Numbers mean nothing.
To this day China closely guards the real number of casualties it suffered in the Korean Pennisula. I've got some insight into this but can't broach it.
In 1979 China sent over 400,000 troops over the border into Vietnam and could not make good on a bid to punish Hanoi. I have met and dined with a high level former PLA officer who told me the only thing he remembers from that conflict is the numbers of bodies stacked roadside as he rode to the front.
I would say that as long as you have a disciplined well trained unit with reliable weapons, high rates of fire and plenty of ammo the numbers of opposing forces means jack