The Crossbow Fort is one of the most versatile advanced towers, and is useful in almost every situation.
It should be placed in key strategic points to allow its Falconer ability to buff as many towers as possible. On most stages, up to 4 towers can be buffed, including the Crossbow Fort itself. The most towers that can possibly be buffed at once is 9 on Dusk Chateau.
The Falconer bonus does not stack with multiple Crossbow Forts, e.g. a tower within range of two Crossbow Forts, one with Falconer Level 2 and one with Falconer Level 3, will only receive a 20% bonus to range from the higher-ranked tower.
Barrage is one of the most powerful abilities in the series due to its raw physical damage output. and short cooldown. When upgraded to Level 3, it can output 300-400 damage with each use, and almost doubles the DPS of the Crossbow Fort.
DPS: 30 to 46 (average 38)
Total Cost: 570 G (540 G with Lumbermill)
Cost Efficiency: 19 gold per point of DPS (18 with Lumbermill)
The Focused Aim and Accuracy upgrades increase base damage to 18 to 28, and the Twin Shot upgrade increases DPS by 10%: 39.6 to 61.6 (average 50.6)
Falconer Level 3 increases DPS by 15%: 45.54 to 70.84 (average 58.19)
Barrage Level 3 increases the DPS to 83 to 118 (average 100.5)
Total Cost with abilities fully upgraded: 1720 G (1690 G with Lumbermill)
DPS with max abilities and upgrades (single target): 87.95 to 125.7 (average 106.83)