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15 cm sFH 18 "Immergrün" Field Howitzer

The 15cm schwere Feldhaubitze 18 (nicknamed Immergrün, or Evergreen) "was the basic German division-level heavy howitzer of 149mm during the Second World War, serving alongside the smaller but more numerous 10.5 cm leFH 18."-Wikipedia.

However, since this is Stormworks, I added some quality-of-life improvements.

Features:

-4000m direct fire, automatic laser rangefinder range
-6500m indirect, manual input maximum range
-Vertical and horizontal aim adjustments
-Target distance, elevation, and time to hit information
-Gunner's scope
-Unfolding legs that stick to the ground
-Tow hitch
-Moveable by hand

Using this gun is simple with two basic modes:

Direct Fire:
1. Press the button to the right of the legs to unfold them.
2. Toggle the breaker and key.
3. Open the breech and load the cannon.
5. Use the gun sight and WASD to aim the gun at your target of choice, and use the up/down buttons or lever to adjust the sight zoom.
-The cannon will automatically correct for range based on the laser.
-WARNING: The laser and cannon movement may cause it to jitter. Point the sight at something stationary or turn it off to fix this.
6. Fire!

Indirect/Manual Fire:
1. Follow steps 1-3 of the other mode.
2. Flick the "Artillery Mode" switch.
3. Input your range of choice, up to 6500m.
4a. To fire at long range indirectly,
i. Use the sight elevation dial to put the sight elevation at as close as possible to 0.
ii. Horizontally aim your cannon at your target.
iii. Fire!
iv. Get a buddy (or a drone) to adjust aim further.
4b. To fire directly with manual range,
i. Point gun at boom boom
ii. Make go kapow

If the battery runs out of charge, it can be hooked up to a vehicle with an electrical hitch to charge.

To turn the gun or move it short distances. grab the handles at the end of the legs (when folded) with both hands and pull. The gun is heavy, so you might need a friend to help.

Credit to MrNJ for the elevation offset calculators.
If I stole your work, complain about it and I'll add some credit.