Talk:Defense/@comment-69.138.219.144-20140403012934

I just tested this and it seems to be true.

If you don't extract at 5/10/15 etc and survive till the next extraction you DO NOT get the previous rewards even if you suceed, so if you get a tower 3 key  for wave 5 and continue to wave 10 and get a fusion core and extract, you will NOT get the tower 3 key, just the core... this is stupid and probably explains why so few people do defense. the rewards don't stack.