I support the idea of "squad modes".

1. Stealth. Just the commander may initiate a shooting. They walk/prone if see an enemy close. If an enemy is close and heading towards other direction, they i'd sneak and use a knife to get the job done.
2. Normal. They may run. Commander initiate shooting.
3. Aggressive. Run, "fire at will!!!"

Commands:

1. No grenades!
2. Dont shoot!
3. Save ammo! (if ever implemented finite ammo).
4. Superssive fire (there)!

And formations:

1. Lined up. (one or two columns, nice for parades!)
2.Star, front line, scattered, etc.