I have the scavenger perk on. It helps me get my killstreak on. I love the SCAR-H but I'll regularly toggle between it and the TAR. I was beasting in Free-for-all with the TAR. I like the UMP when I'm playing in smaller maps (Highrise or Airport). The SCAR or even the UMP is good when playing in the Quarry. The M16 works great there too but I like riding stealth so I normally strap the SCAR or the TAR.