Start rewriting the human turret.
Rename turretAim → buildableAim, turretLastShot → turretLastShotAtTarget for clarity.
Allow arbitrary turret target directions and reset yaw when not tracking a target.
Choose initial turret aim more intelligently and allow reseting to it. Don't reset yaw after combat.
Adjust turret pitch according to power state.

Note that the descriptions of c99e998 and fcfec48 confused the terms yaw and pitch.
Remove old turret code.
Make turret turn rate independent of frame rate.
Leave a mocky comment in g_buildable.c. Also minor cleanup.
Refactor alien hive logic.
More comment cleanup in g_buildable.c.
Where possible, replace trap_EntitiesInBox with G_IterateEntitiesWithinInRadius inside g_buildable.c.
Increase reactor zap range by 50%, decrease damage by 25%, remove DCC bonus.
Give human structures an autoheal ability, remove DCC healing.
Remove defense computer.