@Skill4Reel With Blasco when it comes to XP farming she has 3 tricks up her sleeve on top of the normal kills and objective capturing.
First of all she can get XP from spawns onto her spawn beacon, just like all the other recons.
Next she can equip a spotting device like the T-UGS or the throwable prox sensor. Put it in a high traffic area and she will net spot assists and XP starts flowing like water.
Next she has her X-6 Infiltration device which will give you XP by disrupting enemies and blocking spots. It also highlights enemy equipment in it's radius. Again put it in high traffic areas and it will rain XP.
And finally there's her specialist trait which makes her undetected to motion based enemy technology such as T-UGS, prox sensor, claymores, Boris' sentry turret.
Now put all this to use on Redacted and you will be able to rack up quite some XP. I think together with Paik she's one of the most effective specialists on that map to get a high score.