just like in ror2 it should say that you have to beat the game as survivor to unlock logbook entry, collect some logbooks on the map for envirovments etc.
#some guidance in logbook
analog bison
like here
it doesnt say anything in rorr
i will add it here cuz its related with a similiar menu and ror2, this one in stats looks very empty, i know its missing survivors but its still not much, in ror2 you had win percentage on specific survivors, killed by what enemies and killed how many of which enemies etc. kinda lacking
brisk smelt
made a note about this, thank you for the feedback