I just managed to unlock map 2 and after watched a few videos by someone playing on 500% difficulty I gained a few tips.
I'm now on day 97 and have pretty much claimed the whole map, with triple stone walls, thanatos coming out my bum, snipes a plenty and a few Titan things for fun.... I now have nothing left to do as I have no space left and everything is pretty much in order for the final wave but I have to wait until day 150ish..... I need a speed up button. I should have played on a harder level (I went for the dirty, easiest just to get a feel for the map)
I'm now on day 97 and have pretty much claimed the whole map, with triple stone walls, thanatos coming out my bum, snipes a plenty and a few Titan things for fun.... I now have nothing left to do as I have no space left and everything is pretty much in order for the final wave but I have to wait until day 150ish..... I need a speed up button. I should have played on a harder level (I went for the dirty, easiest just to get a feel for the map)