Tie venture at end of timed tournament game

[AO user]

I looked for post on mathematics of "last hand" math. I've been told to determine who won if neither completed nor KO'd a team it would be the higher value when completed minus the defeated missions (?)
Well today both players ended up with 3-4-0 mission sets AND neither landed numerical hits the last hand.  Do you look at hits in permanent record? Their non-KO'd sum deck total? Rock, paper, scissors, lizard, Spock?

[Jack]

The heuristics we use for our series of tournaments is:

• Venture differentials (Completed minus Defeated)
• Number of characters remaining (after resolving abilities/specials)
• Sum of permanent records across opponent's characters and locations
• Sudden death: 4 cards each, winner takes all.