Hello there. If you wanna grind MiG-21 or F-4 phantom or phantom FGR.2. Or you wanna grind any tech tree. You can trust me to it. I will grind your account within 1-2 week. And also giving you confirmation about it. Contact: Discord: Flogger-NC#5685 Email: [email protected] Requirements for Grinding: 1.MiG-21Bis Have a premium account of at least a week Either have MiG-17AS or Yak-38 2. F-4E phantom II Have a premium account of at least a week AV-8A or F-89B or F-86F-35 or A2D-1 3.Phantom FGR.2 Have a premium account of at least a week Either Harrier GR.1 or Hunter FGA.9 I can also grind anyother vehicle you want it would be according to RP and must have premium time. 50000RP=1$. So if you wanna start from rank 1 aviation of tech tree it will be according to that upto what tier you want. Cheers.