[quote=Sep]
Me and Ellri discussed that as my flame is Relic powered it will shine as bright as usual, which means if I use it... guess what. I'll act as a beacon showing where all us lovely Relic users are at. That'll be fun.
[/quote]

Two or three groups: 
One group of 'tanks,' to act as a beacon and draw the army towards, and one or two other groups of skilled swordsman and other blade-type soldiers to take down people as they get close to and surround the beacon-tanks.

A tank as in someone who can take damage, such as stone-man over there. He'd be able to take a lot of damage, and dish it out in return, but not necessarily take everything down on his own. Fire could act as the making of walls, and with a bit of prepartion time, you could funnel the army so that they'd have to come a dozen or so at a time. There are few so loyal as to run into open flame at the command of the officer.