I've been playing the beta campaign i'm currently on version 115 it's great love it but I have one issue its way to hard I'm currently stuck at sector 27 next to windswept islands I got the enemy base almost destroyed but I can not destroy the rest due to not being able to get close to the enemy core. I've made the biggest army the game will let me for the resources I have but it they get killed each time with ease by the spectre's plus the A.I constantly rebuilding which would be an issue if it wasn't so quick and if that base had no spectre's I was able to destroy the first spectre on that map by using the ripples but again I have done everything. Also most of the sectors are way entirely to hard, hardly any resources and, the waves start to quickly for the types that are sent like I was on sector 1 I think got almost built up a bit then got smashed by 6 enemies with shields for the first wave. I have no idea how you might fix this but something needs to be done in order for anyone to attack that sector or any of the others like it. Honestly if i could have thorium on the other sectors like that i probably would be fine but i can't seem to find any. Also i've been on that sector for 12 hours in game.