Fanon:True Guardian

Spawn
This has a 1 in 20 chance to spawn after a gaurdian dies. First, the gaurdian shell will slowly crack and shapes around it will turn into green crashers. After it cracks fully, it will display the message "the gaurdian has spawned!" If the guardian is killed in a team base, it will teleport out when it spawns.

Phase 1
It will first shoot its 7 regular tank bullets at the back, rapidly zooming and with autospin on. In this state, it is easy to attack using a Spike/Booster/Destroyer/Ranger.