Can 2 people earn all the trophies in private match?

[KRCBR 1]

Just wondering if 2 people can boost all of these trophies

[Andrea 1,123]

2 people can do most of the grind, but there are a couple trophies that require 8 players, and a few more that require at least 4. You can do all of them in private lobbies, however.

[Dark Layla 9,552]

Some trophies can be earned on offline mode
if you want to farm repair trophies (boat, car,phone box ) only 1 friend is needed
To kill jason, you need 3 or 4 people
To kill 7 counselors and tommy do on offline it works
good luck on playing as jason 1000 times