User blog comment:Tommygun9504/Tommygun9504's Grenade Gazzette - March 3, 2012/@comment-1906486-20120303221930

Problem with just straight up BM buying, is the fact that 99% of all guns are without perm. I was pretty upset getting an AK-74M out a MYST-Infinity. I went for a second and got the MK14 MOD 0 for perm, totally worth the price since it was on sale too.

MYST-Infinity is really the only way of getting rares for perm, considering the normal MYST cases are 90% Standard and 10% Rare with a sometimes 9% Rare / 1% Epic kind of variety. That's just to get one of those guns (how I see it..) and even then it's 7D - Perm. So you risk the chance of a good weapon, to only get a possible 7 days usage on it.

I find the G18 is pretty good for a pistol, but I loved the G18 Cobra for it's uses. I prefer the P220 Combat TB really, but I lack a whole lot of pistol variety overall in secondaries. Just problem is the rank requirement. xD

MP7 MOD is a heavily used CQC/CQB weapon, just usually pick it up for fun really. I prefer usually the multitude of weapons I have, so I don't have really much personal experience with it. Usually an Ext Mag II has been my choice, but that's because I'd rather enough ammo for a few people. Slows the reload more obviously, so take your choice on that.