In my opinion, if you want to play squad-based combat, you can't beat Necromunda

Making it balanced so it was actually a fair matchup would be tough, since one good roll could really change the game.

You're kinda missing the point again. It isn't squad vs. squad but rather squad vs. army.

In my opinion, if you want to play squad-based combat, you can't beat Necromunda

I'm talking about rekindling something GW has already done because I liked the idea. I've always wanted to update the Last Chancers to something that could work within the parameters of 7th edition, this looked like it had the opportunity to be a Deathwatch version of that idea without me having to make a ton of stuff up. The lack of specific Detachment doesn't slow me down, it just means that there's more stuff to make up and as such more stuff to explain and workshop with opponents before we play. If there was a Detachment (FOC style, not a Formation) that had some unique Command Benefits or Special Rules it could potentially be a much easier sell to use in said mission and let the mission special rules work to balance the otherwise hilariously one-sided match. Ultimately the Detachment is not necessary for my plan, I just wish there was one.

Honestly I think that if you knew what I was referencing initially you wouldn't be confused. The fact that you have/had no idea how the Last Chancers were introduced to the game is a serious impediment to your understanding of my concept; I am not talking about playing the game the way you have grown up understanding it despite using the same rules for gameplay. Ever seen the movie The Dirty Dozen?

I don't really understand

It sounds, to my ears, like you want to play the game with weird variant rules and alternative scenarios but not unless GW tells you to.

Granted they're not the most balanced unit internally, but they are not without uses.

That means they work as a unit which is lame and completely defeats the purpose I would have in mind for the models should I come across someone looking to use them in games.

...like hell I'm buying something that has an Imperial fucking Fist with a frag cannon.

It's not about having a full sized army, it's more about themed game play among those nostalgic enough to remember the WD rules/missions for the Last Chancers.

If you want to boast about your reading comprehension, might want to make sure you can actually understand what is being said. You obviously failed to comprehend my post.