This property sets how many Projectile objects (bullets, etc.) are in a magazine. A MagSize of -1 means infinite ammo. Interestingly, engineers have an upper repair limit of 3000, and medics an upper limit of 1800, and their RoundOfFire is 10 per second. This means that engineers can repair for 5 minutes total, medics can heal for 3 minutes total.
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