Defence

[Skvez]

I'm going to go "lone wolf".
But even if I knew 25 people that I trusted it's unlikley that they would all get along with each other.
I think you'd be safer from external threats in a group that size but I think internal issues are almost inevitable.
Internal issues including:
Someone not pulling their weight
Someone stealing food (or worse)
Someone can't keep OPSEC
Someone "wasting" irreplaceable resources faster than you think is appropriate
Someone cracking up under the strain

You're very fortunate if you have a group of 25 that can keep it together.