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Date & Time: 6/8/2018 9:16pm
Frequency: once
World name: Sargatanas
Character name: Nicolas'de Concepcion
Class/Level: Lancer lvl 4
Party or solo: solo
In-game time: 9:16
Steps:
1. Create an alternate character on my main server
2. complete level 1 lancer quest which unlocks the hunting log
3. view hunting log to see i have lancer entries up to level 30 completed already

My best guess would be that hunting log (as well as map completion) is shared among all characters on a given account, however I couldn't find anything detailing that online.