Tri-Build Guard

 is a Tier 5 Tank that upgrades from Flank Builder, Tri-Trap Guard and Tri-Builder at level 60.

Design
The has the same barrels as Flank Builder but with 2 more Builder cannons added to its direct left and right.

Technical
As with the rest of the Flank Builder branch, the 's blocks fly forwards to the mouse, not to the equivalent distance behind. All of its Builder cannons fire at once like Tri-Builder or Tri-Trap Guard's trappers.

As the

 * Since your blocks go forward, you can treat this as a version of Fort with stronger bullets but delayed blocks.
 * Your rear Contagion cannon boosts you forward ever so slightly.

Trivia

 * This tank is presumably a joke tank, implied by its poor performance and childish name. Its name is a pun on Fort.