Payload

 is a Tier 5 Tank that upgrades from Package Bomb at level 60.

Design
The looks like Package Bomb but with all of its barrel elements widened to Mega Trapper size.

Technical
The deploys large explosive traps. Unlike Package Bomb, who's trap explosions expand to full size almost instantly, Payload traps make normal Shrapnel explosions that expand slowly and last a long time. They consequentially do insane damage but are easy to dodge.