Hello everybody. Recently won a Store Championship with the deck i will provide in the link bellow.

I am trying to find good replacement for Checkpoint and maybe 1-2 more ICE that might synergize better than Enigma.. any advice/feedback is welcome.

Here is the link to the deck:
http://netrunnerdb.com/en/decklist/18224/argus-security-flatline-guaranteed-athens-st-champ-winner