Oh **** are you serious, or wrong? I guess I just should have nuked Megaton then. I hate Talon Mercs, especially since i use fast traveling a lot, they just keep on coming, there's no end to their contracts about killing you.
There's really only two ways to never deal with Talon Company:
- Be a neutral character.
- Be an evil character.
Howver, being an evil character will cause you to run afoul of the Regulators, as Nines said. You've pretty much started down the path of good if they're attacking you, and once they do they won't stop, even if you become evil (Which I wouldn't recommend due to what I mentioned above; you don't want BOTH Talon Company and Regulators on your ass, do you?)
Thing is, so many quests or things in this game sway your Karma. For example, blowing Megaton up instantly gives you maximum negative Karma, -1000, while saving the town by defusing it gives you +200. Killing very evil creatures and NPCs give you a +100 Karma boost, while killing good creatures gives -25 and good humans, -100. Even simple things like giving Purified Water to the homeless bums gives you +50 Karma. Enslaving people, should you choose to do so when you meet a certain someone, will lower your Karma pretty quickly, too. It's very hard to play a perfectly neutral character, and so you're basically forced into playing evil or good eventually - and once you tip the scales past +250 or -250, either Talon Company or Regulators will come after you.
It's probably better that Talon is on your ass honestly, since truth be told they've got some pretty good weapons and armor. Yeah, it never will end. But you'll be thankful. Talon Merc Armor is a damn good armor to have for a lot of the game... until you get regular combat armor and learn to wear power armor, anyway.
Besides, later on you'll have the option to get the Lawbringer perk, which will make evil characters drop a weightless finger that can be traded to someone for five caps a pop - and there's a
LOT more evil characters than good ones. Among their ranks are anyone from Talon Company.