Fixed description - testing fix for AI spawn issue.

Tweak

Replaced mountain landing force with Chicanes only, since something to do with capturing the base seems to mess up the AI. It will also speed up the destruction.

Small adjustments.

Reduced size of PALA convoy that counterattacks city.

increased timing of some objectives.

Changes objective timing slightly.

Small changes to spawn rate of medusas.

Added additional Bolstrikes to friendly convoys.

Added a Bolstrike to the BDF city reinforcements.