Thats 6v8. It depends on area you are fighting in.
Remember, Just becuz they have 8 ppl doesnt mean they can get all 8 shooting you at once. If you make a good bottleneck and steamroller fighting style its quite easy. Just need a few GrenadeLaunchers + plasma tanks + combo of using windows.
I cant say alot about tactics in this server cuz... well im not used to it. But i can say that in Fonline2 server there is poeple with 419hp with 16/90 DR. (Avenger does 55dmg at range 150dmg 1hex) And yet they die so fast with good focusfire and steamroller tactics.
But in reno. if i was to fight 6v8 i would get a squad of 4 grenade launcher tanks with 2 plasma snipers/fineese sg snipers aiming at groin *Just to KO enemys.