Medium badge: Win 5 maps so you have 5 skill points.
Get Mage empowerment, the first scout, and the first 3 +lives skills. This will give you 9 lives to work with.
Start off with 4-8 mages and make them poison. Then make the center 2 lines warriors and make them energy. Special mages to debuff/infect, and warriors armor pierce. I finished with 3 lives left this was gligas and this is for anyone that needs the medium badge... really works
do the borders or shipyards ever open back up? my disease hasnt killed anyone.. you would think after a year or two with no symptoms or deaths they would need some supplies