Build 0.732 — Skirmish Line Steam update #795503

General -Added in air raid sirens for eneny paratrooper attacks. -Vehicles now provide directional cover. -Slightly increased aim time of Shotguns. -Slightly reduced accuracy and suppression cover bonuses for Trenches. -Adjusted spawn rate on mines to decrease likelihood of 2 mine clusters. -Improved penetration value of strafing runs. -Slightly increased speed of suicide trucks. -Adjusted explosive hitbox on suicide trucks. -Increased hitpoints on suicide trucks from 150 to 200. -Slightly increased hitpoints on Type 94 Tankettes from 200 to 225. -Slightly increased hitpoints on Type 95 Ha Go from 250 to 265. -Reverted change on Raider Deployment. Sector Defense -Enemy defenses may occasionally spawn on advancing. Likelihood of spawns increased as more sectors are advanced. Sector Defense and Defense in Depth -Breakthrough waves will now occur on wave 80+ (currently including only spawns...