Call of Chernobyl is a free-play sandbox mod for S.T.A.L.K.E.R. : Call of Pripyat created by TeamEPIC. It features 32 explorable maps, reworked level design and level fixes, new original level, Trucks Cemetery, Full AI and A-Life overhaul, engine and script enhancements, Repeatable task system which bases itself on A-Life events, Customizable weather environments for every map as well as surges and psi-storms from AF3, Character creation which includes name, portrait and faction selection; Several optional modes such as Ironman mode, story mode and zombie survival mode, New achievements, rankings and reputation system, PDA leaderboard and enhanced PDA statistics, Companion system with keyboard issued commands, many optional side-features and community-made addons .
Testing a heavily modified SoC heli_combat.script altered to select it's own targets dynamically instead of predefined targets through custom logic. I modified my stalker scripted combat planner to target helicopters. It works pretty good after only slight tweaking.
This scenario is set up only for testing purposes. Under normal circumstances we won't have military attack everything in sight. Helicopters will only engage trespassers and stalkers who engage in combat with military squads.
There is a shit ton of work to do for helicopters left, but this a big step up. Helicopters will add a lot of expansion to gameplay.