does anybody know if the mike gun is any good I don't want to waste a unlock on it because I want to get the rail sniper too

I haven't unlocked it myself but I have played one match with guy who had it and that gun had enough stopping power to put me down at Close-Mid range while I was continuously shooting at him with a SCAR. The user of the weapon is most vulnerable when getting off the first shots because it takes half a second to warm up.

In short I died quite a bit....(R.I.P. K/D Ratio D:)