So I'm working on my turret mod and I'm running into snags balancing it. A few people on the DDA forums have expressed interest in it, but there's no way it's going to be PR'd in its current state.
As for how it works:
You need to build a turret frame:
1 Extra light frame
1 Chain Or 100 bearings
4 Pipes
6 Scrap
Afterwards, you can build a powered turret frame for automatic turrets:
1 Rotating Turret Frame
1 Electric Motor
1 UPS or 1 Small Storage Battery
6 Solar Cells
4 Scrap
1 Chain
1 Targeting Computer (A targeting computer is made from a broken laptop, copper wire, power converters, and some other stuff. May consider also being able to use cell phones and PDAs).
The regular turret frame can be mounted with "simple weapons". Since I can't really simulate the lack of movement/targeting systems, simple turrets only have enough storage for a single burst. You have to reload it after it fires.
So far, the simple turrets are:
Grenade Launcher
HMG
Ballista
Spear Gun
Volley guns, various calibers (Burst 10/25/50 variants, crossbow bolt variant also available; load with explosive bolts for !!FUN!!)
Spring Launcher (Launches can grenades with different payload types, 3/5/7 Volley variants also available)
Land Mattress
There's quite a bit of micromanaging these since individual turrets can't be toggled, so I think it balances out.
The automatic turrets I have so far are:
HMG
Dual Turrets (Various Caliber)
Quad Cannons (Various Calibers)
Nail Turrets (Dual and Quad Variants)
Pulse Cannons (3-shot, battery powered)
Multi-Barrel Rotary Spear Turret
Assault Bolt Thrower
All turrets listed above have deployable variants. They require a few more materials but can be deployed and repacked as needed. Note that battery powered turrets lose all power when packaged. Ammo-based turrets drop their ammo when packaged. They require a few more materials, usually just some pipes and scrap.
Turrets are MUCH more accurate than the vanilla variants, barring the turrets that launch volleys of explosives which are intentionally inaccurate in order to spread out their payloads for maximum coverage.
Then there's a few other side projects, alarm grenades, disassembling/reassembling explosives, charcoal burners/water boilers that don't need you to stand still for an hour, etc.
Now the issues I'm having is what the skill level should be for these. And whether there's guns I may be missing.