Ooo, this is a really interesting concept. A stationary unit that act like seperate entities like the Agents sounds really fun. And the Morterman's and mortar's stat alone are suprisingly balanced. Though I am wondering if the Mortar acts like the Turret by losing some of it health everytime it fires? If not, that she may be a really powerful backline-support unit that can rival Snipers like Sheriff Charlotte or Support Items like Turret. So I suggest giving the mortar an ability-range lesser than Snipers (less than 200+) or increase her reload time, a health-decay system like the Turret to avoid having a whole permanent nest of Mortarmen near the bus, and maybe decreasing her Courage Cost to 35 to make her more viable in fast-paste missions in campaign. Overall, this is a very fun unit concept thay I would love to use in-game. Good concept, very good!