use the low cost soldiers, keep the fight in you turret range and keep beefing the turrets while try to save money. When you have enough money send a bunch of stuff and then a super soldier. The super soldier walks right them!
the scout ships, I cant find enemy scouts, yesterday I found 2 and today none. I went over the map from corner to corner 4 times, square by square using 7 scouts in a line formation and NOTHING. I'm done with this game and I hate you for wasting my time. First Card I'm skipping
 "GemCraft"){kind=icon}
 "Dog Eat Dog"){kind=icon}
 "Tactical Assassin 2"){kind=icon}
 "Age of War"){kind=icon}
 "GlueFO"){kind=icon}
 "Flash Flash Revolution - Kongregate Application"){kind=icon}
 "- Music in Motion -"){kind=icon}
 "Mr. Bounce"){kind=icon}
 "Drone Wars"){kind=icon}
 "Music Catch"){kind=icon}
 "Ring Pass Not"){kind=icon}