Well with all due respect, given that you’re only a captain with a KD less than 1, I can see why he betrayed you. I honestly don’t mean any hate by that, I’m just keeping it real.
The sniper and the grenade launcher are the only power weapons which actually require any skill to use. So you don’t want lesser skilled players taking them and not using them to their fullest potential.
The case could be made that you’re the one hurting the team by not letting the better players use the skill based weapons, while you could take something which doesn’t require skill like the Sword/Hammer/Shotgun/Plasma Launcher/Rockets/Banshee/etc.
You said that their team killing isn’t good for the team, wouldn’t you also agree that having a newer player who doesn’t fully understand the game, yet grabs the most skill based weapon…also isn’t good for the team? why does the betrayer have to play “For the good of the team” when you don’t?
Also I’ve even seen inheritors barely go positive with the sniper. If somebody betrays you and the team loses 1 point, but they wind up getting 5 more kills with the sniper than you would have, then in actuality them killing you was NOT bad for the team, it BENEFITED the team.
Now I want to make something perfectly clear, there is a difference between bad and new. I’ve seen inheritors with tons of gameplay, who are FLAT OUT BAD, in fact I’d say a good 95% of the inheritors you see infesting BTB can’t DMR worth a damn. In all my experience facing inheritor teams in BTB, ONLY 2 of them were actually good.
You on the other hand are simply new (Captain Rank), and inexperienced. If you really want to play for the team, like you state the betrayer should be doing, you should get more practice and experience before going after the skill based weapons please.
If you want I’d be more than happy to help you, I’ve trained a lot of newer players and helped them get past the learning curve. The Halo series has a lot of things which aren’t easily apparent to newer players like yourself. So if you honestly want to help your team, I can show you how. If you don’t honestly want to help your team, then don’t expect others to follow a standard that you won’t.
Either way best of luck to you but betrayers will always be a part of this franchise until 343 actually fixes the damn betrayal system.