Calculate drop points, making MG camping in one place more likely to be targeted for airdrops.

v0.9
- Merc randomly gaining Lucky777 buff will temporarily experience power boosting.
- At the beginning of battle, the number of enemies will get a random multiplier increase.

v0.9
- Merc randomly gaining Lucky777 buff will temporarily experience power boosting.
- At the beginning of battle, the number of enemies will get a random multiplier increase.

remove some pics to keep fit

v0.8
- add reinforcement and betrayal
- add global difficult adjustment mechanism

bugfix

initial release