i forgot to mention, to make the scenario working, set in the mod menu the maximum of upgrade Tiers 5 -> 7 or some entities in that Scenario won´t appear which are needed to make the fluid turret working

i am the mod creator of factorio plus plus and working on a new Version (not live yet)
project: creating an acidspitter Turret (fluid turret Entity)

for testing, i created a Scenario with that turret wich is Ready and armed. Right of it are Aliens.
Walking Right, the Aliens charge, Tower starts to ...