There are many places to split up into smaller groups

How is the mission broken up? The mission is two blocks long, and the blocks can be broken up into sort of themes. The first block is more bounty bay money of a team puzzle than anything.

There are many places to split up into smaller groups and shave precious seconds off your time. But at the same time, this means if one person is out of synch, the rest of the team is slowed down. But, there aren't very many monsters and the ones there are aren't very deadly.

The second block is all about working as a team to kill monsters. The monsters are very deadly, and you can very easily be caught off guard.

Only when everyone is doing their role will it be completely reliably.

Why does the green group magically become the red group between steps? For consistently sake, I felt that the Red group would always be the group doing things, while the Green group is always the group staying behind.

In reality, choosing different people to do different paths may increase or decrease your time depending on the difficulty. I'm only listing what I recommend.