voted no because
it eliminates being able to sneak up on ppl.
i find it challenging,logic and rewarding to have to memorize my surroundings before i drive/run like a rabbit on steroids in a direction i cant see with my eyes.
and am happy that it requires that kind of effort to be able to run at 150mph away from someone while firing.
oh yes and if they ever should implement outside cameras they should be disabled by ppcs just as much as the nightvision 
Honestly how much sneaking do you think your doing in MWLL? I ask because I pick passive and/or GECM 'mechs up at around 600-700m with BAP and BHP. The sensors are not Line of Sight and they are omni-present, so sneaking around is of limited effectiveness.
Only time sneaking works is if you take a looong way around (while keeping 700m+ distance from the enemy) to gain a position to attack the enemy from the side or rear, you get within 600m of anything and you'll be spotted, if you don't use cover your spotted even further out. In CBT you could sneak up to some-one as long as you stayed out of line of sight, but in MWLL things work differently.
But back on topic: I think you misunderstand what I'm suggesting, MFD: Multifunction Display, each vehicle has 2, the radar one (the left one) you use a lot, the right-hand map one, not so much. In military vehicles as far back as the 20th century MFD have been able to be toggled to enable access to specific functions not displayed by default by the HUD (Heads up display).
So it's a small porthole shaped camera, with reduced field of view, that is toggled from a key stroke to replace your righthand MFD , toggle once, it's rear mirror, twice it's front, 3 times and it's down in 'mechs and ASF or up for Armour, toggle once more and you've got the map back. This is not your MW4 fullscreen reverse camera, more like the rear-view mirror you get in racing sims; it's just a low-resolution image to help you steer while pointing the guns in another direction...and it can be set up so that anything further than 300m away would simply not show up with a resolution that you can identify...problem solved.