Updated to 1.4.3
-Changed infinite sentry ammo coding to OnEntityCreated instead of the player_built_object event
-Changed adding/removing the sentry infinite ammo flag to take into account current flags instead of overwriting them.
I was notified last night that sentries spawned through plugins(Building Spawner, RTD, etc) weren't getting infinite ammo. Should be fixed now.
It was because they don't fire the player_built_object event. OnEntityCreated should catch everything, even plugin spawned ones. Also, it will no longer overwrite the current spawnflags.