Summer Event [Suggestion]: Attacker, Protector, Guardian, and Scouter

These summer event just give me a good idea :).
In the events a lot of us players come together and it is not limited to parties ether, I think this is good in it's own way, my thought is it just need a bit more guidance....

(so here the way it could work)

Attackers: Multiple people go out to the specified location to get the target or defend it.
Protectors: The players that help protect the target by healing/buffing it or debuff it.
Guardians: The players that chose to stay behind, they should defend the outpost or alter.
Scouters: The players that stay behind to lookout for approaching enemies, and sometimes standing high up in places like; outpost, towers, or alters, the best view point.

....keeping it loose and a simple way to imply would be to add Icons over head, that states what we're doing at the time and in the area.