Separate names with a comma.
By being good at the game.
There's a level 50?
Yup. Level 50 indeed.
I don't even see why you'd need to get to Level 50. If you go Nar Shaddaa immediately after Telos and complete everything there you'll be OP for the rest of the game.
One problem about KOTOR 2 upon replaying it is how OP the Exile gets halfway through the game. Which makes segments where you play as the companions difficult as they are not as powerful.
Thats why you rush to make them Jedi. Atton can be done after a few minutes on Nar Shadaa.
Even as Jedi, some of them are weaker than the Exile. Granted the companion segment I'm recalling has only Atton, non-Jedi Mira and T3 (getting the codes to a supply ship to board Goto's ship).