3.18 PTU is now in Wave 3

Source: [Alpha 3.18 is now OPEN to All Backers! - Announcements - Star Citizen - Spectrum v6.2.2 (robertsspaceindustries.com)](https://robertsspaceindustries.com/spectrum/community/SC/forum/1/thread/alpha-3-18-is-now-open-to-all-backers/5740614)