No, you need to rank up your gun level again.
No all camos and attachments on guns reset after prestiging.
yes
Keep playing until you get 10th prestige
Using MW3 Prestige Rank Hack for free by getting it from the Modern Warfare Prestige Hack site and using it to edit and hack your Prestige Level, Rank and unlock everything from guns, camouflage and attachments. Source http://www.mw3prestigehack.net/
the colour of prestige 3 in mw3 is blue
After you prestige you get a prestige token
The highest prestige in MW3 is 10th. 10th Prestige level 80.
Yes 1 per prestige.
Well if you prestige in MW2 then you should get a token, and then on MW3 when ever you get to 80(:
you get to unlock any one thing including guns, special grenades, claymores and attachment etc. (note i have herd that if you unlock a gun and get it gold it resets to lv 1 after you prestige again)
you have to be rank 80 to prestige
No
no