Adds some more vanilla-like things for your grav ship.
Warning sign, wall-turret, mortar and x4 larger chemfuel generator!
1. Wall-Turret
Acts as a steel wall. Supports vacuum, paintable. Additionally functions as a turret. Shorter range than a pikeman, but sufficient for most fire support roles. Costs about half of an autocannon turret.
2. Top Hull Grav Gun
High-tech mortar. Fires multiple projectiles like an anti-air gun. No shell consumption; uses power instead. Small explosion radius.
(+ plz suggest some names!!)
3. Warning Signed Metal Floor
Metal tile with built-in warning sign. Decorative.
4. Big Chemfuel Generator
Produces 4x power of standard chemfuel generator. Still 2x2 in size. Consumes chemfuel 3x faster. Requires research. Useful for compact late-game grav ship.
