When any kind of vehicle drives over infantry there's random possibility of it causing the vehicle to fly away due to collision or being destroyed. This does not happen in singleplayer.

Example from co10 Escape mission gameplay: https://i.imgur.com/bJGMSgD.mp4
Example from attached test mission: https://www.youtube.com/watch?v=H6jS3NPCEGk (resulted in death instead of flying, kinda random)