Get beat by a grunt often enough and it could work their way up the ladder, and they will bully you for constantly dying too.
If you're unfamiliar with Nemesis system, it works like this: enemies will remember the players actions, such as whether you had previously killed them or been killed by them, allowing them to move up and down the hierarchy. Middle-earth: Shadow of Mordor's best feature was easily the nemesis system, and an upcoming mod seeks to add it to Skyrim.
