If you are such a big fan of Collision and you want all add-ons, you can take a look at this list. This is what we recommend for you to get. Of course feel free to change it any way you like :-D
One player: Survivor pledge, 1x event model, 1x AP tokens, 1x Game effect tokens, 1x loot tokens, 1x player dashboard, 1x power cards.
Total € 72
Two players: Gang leader pledge, 2x event model, 2x AP tokens, 1x game effect tokens, 1x loot tokens, 2x player dashboard, 1x promo item pack, 2x power cards.
Total: € 136
Three players: Warlord pledge, 3x event model, 3x AP tokens, 2x game effect tokens, 1x loot tokens, 3x player dashboard, 2x promo item pack, 3x power cards.
Total: € 204