Armada
Cortex
Sheldon
The Sheldon is an agile mortar bot armed with a long-range plasma mortar that fires small shells at a fast rate.
It has longer range than most T2 units. The Sheldon is a natural skirmisher - perfect for dealing damage at long range while on the move. Use them to provide fire support for your close-range units.
Mix in mobile radar and jammer bots for a classic combo - the radar bots' large sight radius vastly increases the accuracy of the Sheldons while jammers hide them from enemy radar.
The Sheldon is also good at dismantling enemy defensive lines as it can slowly but steadily do damage from a relatively safe distance.
The main weakness of the Sheldon is its paper-thin armor, making them sitting ducks once enemy units get close enough. Also do note Sheldon are very weak against large numbers of cheap fodder such as Ticks and Pawns.