Terran Partition v2.04: Beam, Smoke, Targeting Fixes

Terran Partition v2.04

1. Beam weapon ability fixed activating and deactivating constantly
2. BO field fixed allowing units inside it to attack outward by adding blind mechanic
3. Aggressive Move fixed changing target to nearest target
4. Moveattack and Aggressivemove fixed not using nearest_unit(), so not checking if target was visible or targetable

That's all.