Aw for fuck's sake people (I love saying this), stop spamming - killap already said that he doesn't want it in his thread.
To remain on topic, I will propose something about Kaga, more precisly, his dialogue. It seemed kinda cliche for him to explain aaaaall the reasons why he wants to kill you the first time he meets you. It should be like:
- <Kaga>Greetings. You don't know me and I don't care what you have to say, but know this - you die. Now.
- <Chosen>What the f...
Only when you beat him the first time, does he bother to explain something, give his name perhaps - you need to gather his background elsewhere (like Arroyo). Instead of a comic-book villain, he should be a consumed by hatred, ambitious, but cryptic person, intent on your death.
I don't know if perhaps you already did such changes or simply made him a less pain in the ass, but this is how I feel your sworn enemy in a Fallout game should look like, especially given his background.