Further heli crate loot tweaks:
Removed single MLRS rocket, now has a chance to spawn within the rocket ammo collection instead
Removed chance of 1 low-end attachment loot spawn
Reduced the chance of lower tier weapon spawns
Removed flashlight/laser sight sfx from viewmodel effects (these can be spawned at the entity)
Added the option for EffectMount to block the off sfx when disabling, prevents the off sfx playing when holstering a weapon with an active light
Fix doorways, door frames & windows snapping to the floor rather than the top of walls when building jump ups.
Also allows floors to connect to the middle of the above blocks (but provide no stability)