Looks well though out although IMO you could have added more items for cover in the bottom where the humans are. It really looks empty in that area. other than that its a good map 4/5 good work.
Design is cool, I'm just not sure if you hit the mark. You should consider making it into another gametype.
looks very fun and a great idea, some places i feel could b improved but besides that looks good, i feel it should b moved to mini games