Here’s a compilation of stuff I’ve mentally noted down from playing or watching other people play. It should help you.
I’ll attempt to update this That’s not my Neighbor Doorman Guide & Tips if I discover any new tips.
That’s not my Neighbor Doorman Guide & Tips
Tips
– Try to cross-reference appearances from the data folder. Doppelgangers can alter the photos in their IDs and Entry requests to match their in-person appearance.
– Make sure you call on EVERY person, as sometimes they might already be in the apartment. Doppelgangers may also carry documents that their roommate claims are in the apartment.
– Ask the person why they’re not on the list, even if they are. Most people and doppelgangers will call BS, whilst some doppelgangers will make up a lie, despite being on the list.
– Doppelgangers cannot answer phones.
– In the campaign mode, if you let in a doppelganger, deny anyone trying to get into that apartment to reduce casualties. It is worth noting that they have a chance to be killed out on the streets, but it’s not a guarantee.