I think in a group 10 vs. 40 the group of 10 would win.
They're easily coordinated and the 40 would all have to share what they have while the 10 would do share it with a 4th.
Also the 10 would need up more room to spread out the virii they researched bringing the HPD earnage per user up more allowing more research.
OR something alone those lines :D I'd love to team up with some people although at this moment I'm trying to get myself off the ground which is proving harder then expected, I just hope the runway's long enough for me.