Should you always deactivate stealth mode before shooting? Always?(multiplayer)

It automatically deactivates, if you're in close range behind, then no.

Switch to armor straight away.

yeah it drains it right away, going straight into amour mode is a good tip too because it seems to focus your aim mode as well

If you are in stealth and you shoot a weapon, all your remaining energy will automatically be depleted and you will obviously become uncloaked.

The best thing to do is to either switch out of it or to switch right into armour mode to give you an edge even if you are behind that person.

@everyone: Does shooting a silenced sidearm prevent you from the above happening just like in SP?