Castle Busters Archer and Cannon Combo Guide

To destroy fortified positions in Castle Busters, deploy Archers to draw defensive fire and weaken target structures, then follow up with Cannon fire to deal high-impact structural damage. Using these two units in tandem allows you to bypass thick wall upgrades while protecting your siege artillery from enemy units.

Archer and Cannon Unit Roles

Combining the Archer and Cannon addresses the individual weaknesses of each unit. The Archer provides rapid, long-range fire to suppress defenders, while the Cannon delivers heavy burst damage to dismantle walls.

Step-by-Step Siege Sequence

Executing a successful siege requires careful timing so you do not waste resources or leave your artillery exposed.

1. Scout the outer wall: Fire initial test shots with your Archer to locate the weakest section of the enemy fortification.
2. Clear high vantage points: Direct Archer fire toward defenders stationed on elevated platforms to protect your incoming units.
3. Flank with the Archer: Position the Archer slightly ahead or to the side of your main strike line to draw defensive targeting away from the Cannon.
4. Time the Cannon strike: Launch the Cannon shot once the Archer has chipped away target durability and cleared enemy infantry.
5. Maintain continuous suppression: Keep the Archer firing during the Cannon's reload cycle to prevent enemy unit movement or repairs.

Resource Management and Defense

Because this offensive pairing requires significant stamina and ammunition, uncoordinated deployment will leave your keep vulnerable to counter-attacks.

• Cycle unit deployment: Avoid launching both units simultaneously at heavily damaged targets. Fire the Archer first, observe the impact, and commit the Cannon only when you have a clear line of sight to structural hitboxes.
• Prioritize incoming infantry: If fast-moving melee units push toward your position, shift Archer fire immediately to eliminate the threat before resuming structural attacks.
• Reserve energy for base defense: Never exhaust your resource pool on a single assault wave. Keep a baseline energy reserve to react if an opponent pushes past your siege line toward your own castle.