should i keep?

[yorkhunt]

I'm only lvl 14 "/ and its a little too early to judge but I have 3 gunner and "thought" it was a good idea at the time, I looked through some formations and found out that i might be missing room for more important merc in the future. Should i kick one of my gunner?
:gun::gun::malehero:
:gun::sha:

[Locksley]

viking-BT-sword/BT
main-gun-gun
gun-shaman-monk

later ditch the backline gun for exo if going pvp.