Build Barbette to protect your resources and upgrade it to increase its firepower.
You need to pay attention as it does not work while being upgraded.
Barbette, along with Gunner Tower, is the very first defensive building when you start playing Pocket Fort.
Barbette is known for its good damage and attack speed. A highly upgraded Barbette can kill some weak Ordinary Troops such as Sniper and Bio-Sapper in just one hit and Gunner in 2 hits.
Don't underestimate Barbette. It can easily kill a KK when placed in group.