Stackable loadouts

Stacking loadouts in Battlefield 3 is a very useful feature that make vehicles like the main battle tanks very powerful and harder to destroy in the hands of a decent driver. But, keep in mind only first tier load outs and that they stack in different ways.

Reactive Armor:
Only as a driver can be activated and stays even if the driver leave the vehicle.

Proximity Scan:
Activated when entering to a vehicle on any of the sits and stays even if you leave the vehicle.

Maintenance, Thermal Camo:
Activated when entering to a vehicle on any of the sits but leaving will disable its benefits:

Auto Loader, Belt Speed:
I am not really sure about this, I think it works like reactive armor but leaving the vehicle disables it

Note:
Deciding what to use depends on how in sync you are with your teammates and what you are gonna fight against and remember to always be a engineer not just because you can repair your vehicle its also because as a engineer you are able to remove explosives. for example, some support player plant at least two c4 on your tank but someone kills him since the c4 is able to stay and not vanish like when the game was launch, that player can detonate the c4 when he spawn again so is some engineer duty to remove those explosive before that player spawn and blow the tank up.

Examples:
MAIN BATTLE TANKS
Autoloader, Proximity Scan, Thermal Camo
Ir Smoke
Guided Shell
or
Reactive Armor, Proximity Scan, Maintenance
Thermal Optics
Canister Shell

I love this thread good topic.

Awesome thread, this is what the forums are for. great job!