what new things will it bring, how is it different from the official LH faction and the HF (no, combination of both doesn't make sense if you know who those two factions are)
Apart from the military structure, which does not fit the Lane Hacker concept at all (it literally hit me in the eye)...
The Hellfire Legion has a military structure, but that's because their origins are in the Liberty Navy. They don't pirate.
And your description is a subset of their goals. If you check some rumors and in-game facts, you'll see that military structure does not fit the Hackers at all.
Rumor Wrote:The Lane Hackers are disinterested in politics. We do not fight for any cause or rally behind a flag. The only thing that is important to a Hacker is money so that any wants are fulfilled.
Edit: because you just said you won't pirate ... er, pirates in New York don't pirate anyway, they are there mostly just to pick a fight with the lawfuls for fun (sometimes they roleplay reasonably well, sometimes not. The minimum required by the rules is a minimum. Still means it can be done better than that - usually.)
So unless you extend the description to include something unusual, I don't see the point in creating a new faction...