A partner for my previous deck, https://arkhamdb.com/decklist/view/8514/optimus-rex-best-investigator-ever-made-1.0

It's a focused monster hunter to protect Rex while he does his thing.

Strategy: Mulligan for all weapons. Keep all weapons and Prepared for the Worst.

Upgrade Guide:

1 Priority - Stick to the Plan and 1 Ever Vigilant (Replace 1 Unexpected Courage)

2 Priority - 2x Lightning Gun (Replace 1 Guard Dog and 1 .45 Automatic)

3 Priority - Extra Ammunition (Replace Unexpected Courage and 1 Guard Dog)

4 Priority - Upgrade Beat Cop and Vicious Blow (In that order).