Operation: Counterstrike 4-0 in small store tourny

This deck (somehow, I'm still trying to work it out!) went 4-0 in my local store's spring tournament (bringing me to 8-0 and 1st place overall) and since it's the first corp deck I've made that's seen any success whatsoever, I thought I'd post it.

The game plan should be fairly obvious: draw and money up aggresively, try to score out while they scramble to get out of punitive range, kill them if they get too daring. All of my wins were kills (1 contract killer. 2 punitive, 1 had a choice), but 2 of those I would have scored out next turn otherwise.

I'm tempted to change Utopia for a Hades, though I do like the tax factor to aid in killing. However 1 of the games (against Noise) I got very close to milling myself out before I won. The overwriter is also kind of a flex slot. It never got used, but I did like having the option to fake it out as a takeover.

The ice list was meant to be a mix of tax and keep out power, and I think it worked quite well.

Would appreciate feedback on how to improve the deck, like I said corps are really not my strong point so I imagine a lot of its success was luck.