Operator

 is a Tier 5 Tank that upgrades from Engineer, Airhorn and Mailman at level 60.

Design
The greatly resembles the Engineer but without one of its barrels. It retains the Engineer's base, narrow barrel and tip barrel, but it loses the barrel that looks like the tip of a Spawner's guns. It also has Airhorn's rear decorative barrel.

Technical
Despite upgrading from Engineer, this tank does not use Pillboxes. Rather, it uses slowly-spinning blocks similar to an Airhorn's, but with trapper barrels on all sides rather than small Machine Guns.

As the

 * This tank is excellent at blocking off areas due to its combination of blocks and traps. It is sometimes considered a better area-denial tank than even Trapfield due to its ability to set up trap storms and attack due to its blocks.
 * Due to how the tank works, whenever you fire a single trap is propelled forward with decent velocity. You can use this offensively on top of your blocks.

Against the

 * Avoid running into its traps and blocks. This will be difficult due to the sheer amount it can put out, so your best bet is probably to just stay away from it entirely.