You only need to get 1-2 people with nails close enough to gouge that gorilla's eyes outmight lose 8-10 brehs during it's crash out from being blinded
This is the key.
Attacking a gorilla is like attacking someone with armor on. Only chance is to weaken a critical part of its body.
Don't know much about gorilla stamina, but typical human fighting stamina is sh*t.
Also the mental fear factor once the men see a couple limbs get ripped off and broken like pretzels with ease.
If the 100 men had some time to plan and organize their attack, they have a chance.
100 men all doing random sh*t they're getting smashed.