Bullwinkle. is taking part in the American Bazaar Birthday Hunt (ABB hunt) and this tank is their prize. It's not at all hard to find. The hint that I will give you is that it is on the first floor. It will be available until September 30.
Also, did you hear that SocialANGtz is having a sale from today (September 4th) to September 11th? Single poses are only 10L, and pose packs are only 50L! I am using one of the poses in the picture below.
Others:
-Hair: eha* Shino (Black Ash; tinted much darker)
-Skin: Chain and Vine - Lian - Tone 7 CHO
-Eyes: Fashism
-Tattoo Lashes: Mock Cosmetics
-Capris: Fri.day