Every competitive FPS on the PC is played at 5v5 or 6v6. 12v12 is plenty of people. It allows for much tighter combat and quick back and forth action instead of long, drawn out slug fests where explosive spam is all that's important.
The layout of the game world is somewhat similar to Guild Wars. There's social zones and agency headquarters where players can run around outside of combat. Then all the combat is in instanced zones and territories that are fought over by alliances.
dev posting from their forums:
Quote:
Agencies will hold up to about 100 people
Alliances can hold 100+ agencies
So at least for the initial testing, you can form a group as large as you want.
Territories are grouped into zones
Each zone has 100-400 territories to fight over
There can be as many zones as needed.
There is also PVE combat vs. NPC bots, but I don't think they've released much info about it yet. The devs have also mentioned some kind of VR missions or training areas.
Quote:
Most standard PvP missions take about 15-20 minutes.
Base raids have three stages, the first stage takes 15-45 minutes, second and third stages take about 15 minutes each.
The base raids are the 60v60 battles that get split up into individual instances capped out at 12v12. Apparently the attackers and defenders will have some kind of a commander than can allocate players to specific fighting areas. The bases inolved are controlled by individual agencies, but anyone in the same alliance as the agency involved can help out. Agencies also have headquarters that are customizable to some degree.
There's a post on their forums that has a good collection of information about the game:
http://forum.globalagendagame.com/phpbb ... =71&t=2888