After some study I realized that my turret implementation differs from Joshua's in a really interesting way!
Joshua's gets stronger the more spotting your opponent has, while mine would waste a nice spotting, since it can only make one damage per strike. 5 damage dice or less mine is usually more powerful, 6 or more Joshua's become a better bet.
I like that difference enough that I'm going to implement both at the same time, Joshua's turret becomes "turret" and mine becomes "disruptor turret".
I would also like thank Francisco Duarte for helping me out with a pdf!
Speaking about PDFs, here's an early version!