I got about 90000 on hard without a radar. Using no radar gives you a bunch of extra points, but you will have to play the level a bunch of times till you know exactly where everybody is. I\'m working on a 2-3 minute solution on the hardest difficulty. So far, I\'ve gotten my infiltration into the ship down pat, with one shot fired (at the second guard you see), but It gets really hard, cause there are actually waaaaay more guys, and you have NO radar at all (not even the option for one). I\'ve done it a few times, but always with continues *you can\'t be seen*.