A simple design I thought I could upload.

To operate in ground mode, press G to retract gear, activate group 2 to start the engine, and drive with W/A/S/D.

To operate in air mode, have your gear down, press 1 to activate the engines, begin throttle, and drag the VTOL slider upwards, but, do not drag it backwards, the plane will bug out, for safe operation drag it in the middle, or upwards. To operate a self destruct mode, select the rocket from the Air-Ground weapons, and fire it using left-alt.

Known "bugs" include:

In air mode, it doesn't get off the ground on its own, to counter this, simply press G twice to make the gear fling the vehicle upwards whilst taking off.

The vehicle might get buggy when in contact with bumpy terrain, and the vehicle sometimes stalls whilst in the air.

Main features include fast and simple transition to either mode, a devastating self-destruction, and more. Feel free to give feedback, either in the comments, by contacting me on Discord, @dkDeMKN#0283, Twitter, @dkDeMKN, or steam, at /id/dkDeMKN.