Yeah, definitely silencers. Do you have any suggestions for my Primary and Secondary and any other attachments? Would it still be a good idea to use an assault rifle, even though I'm playing as an operative?
ideally, an operative should be a light build. yes you have the lowest health out of every other build but don't forget you can get a health buff from a medic. operatives should be light so they are able to use parkour moves so that there are not limits how to get around the map, especially if your trying to infiltrate the enemy base.
another thing you seem confused on is that, even though an operative can disguise himself as a member one the other team. as soon as you engauge someone your disguise goes away, doesn't matter if you have silencers or not. as soon as you start shooting your disguise goes away.
i really don't think a medium build is ideal for an operative, because as stated before you won't be able to do ALL the parkour moves, you'll only be able to vault and slide. Can't do wall jumps, which puts you at a disadvantage when trying to infiltrate the enemy's base. since your going to be doing a lot of CQC, SMG's are ideal. Also, if you do need to engauge enemies @ a distance, light builds can carry long rifles on them.
hopefully this helps you out.