If you guys use my fort for the next purge, the thinking is basically this:
Start out on the walls. When you need to, get down and fight in the courtyard. Zombie breach points can become kill zones. If you fight in the shadow of the shotgun turrets, they can help you out. Any turret users stay in the top part of the inner cage and just manage turrets and look for boomers to target. (I think the M-60 might be a good choice for this. Get the bipod and laser sight and it's pretty accurate if you aim and burst fire. Put the ammo drum mod on it too if you have one.)
Towers are for temporary hiding if you need to heal or fix your weapons or need to otherwise try and get a handle on a situation. Generally stay mobile in the courtyard and keep the junk turrets going.
Start out on the walls. When you need to, get down and fight in the courtyard. Zombie breach points can become kill zones. If you fight in the shadow of the shotgun turrets, they can help you out. Any turret users stay in the top part of the inner cage and just manage turrets and look for boomers to target. (I think the M-60 might be a good choice for this. Get the bipod and laser sight and it's pretty accurate if you aim and burst fire. Put the ammo drum mod on it too if you have one.)
Towers are for temporary hiding if you need to heal or fix your weapons or need to otherwise try and get a handle on a situation. Generally stay mobile in the courtyard and keep the junk turrets going.