Welcome to Librarium Online!
No ResOrb? Interesting... But you do have a monolith and tomb spyder support that your warriors aren't alone, you're only gonna suffer when you start getting pounded with S8+ weapons and power weaponry.
How do you intend to run this list? Just so I have a better idea of how well this list can perform for particular roles/missions. Other than that, it seems fine. One question though, why the extra warrior in 2 squads? You could just drop those two warriors and pick up an additional immortal.
Necrons W68-D13-L10 (3rd edition codex)
Necrons W3-D1-L1 (latest codex)
Skaven still being assembled