try :
Weapon CrusaderMachineGun PrimaryDamage = 10.0 PrimaryDamageRadius = 25.0 AttackRange = 150.0 DamageType = SMALL_ARMS DeathType = NORMAL WeaponSpeed = 600 ; dist/sec ProjectileObject = NONE FireFX = WeaponFX_GenericTankGun FireSound = GenericMachineGunFire RadiusDamageAffects = ALLIES ENEMIES NEUTRALS DelayBetweenShots = 200 ; time between shots, msec ClipSize = 0 ; how many shots in a Clip (0 == infinite) ClipReloadTime = 0 ; how long to reload a Clip, msec End