1. turn to editing mode
2. place down 2 Armour locks
3. turn to a spartan and pick up a Armour lock
4. use Armour lock and turn into editing mode while using the Armour lock
5. press B on the remaining Armour lock and choose delete all of these.
6. turn back to a spartan and there you go. Armour lock still on.
you can still be assassinated. you can all so die if your vehicle blows up. Not sure if you can die from falling. so go ahead and experiment.
doesn't work PM me or post in this topic and i will send you message with a link that will show you how to do it.