Is there some reliable equivalent to hamachi or BattleLan?
Your mixing apples and oranges with this question.
Hamachi is a VPN and Battlelan is a primitive 3rd party anti-cheat system not worth using.
Hamachi -is- a reliable VPN and Battlelan is -not- a reliable anti-cheat system.
He said BattleLAN not BattlEye bud.
I like Hamachi over BatteLAN because Hamachi has a much more active development team.
Hamachi was classed as a bad app once upon a time because badly configured network settings on the users machine allowed hackers in.
But software updates since then have addressed that issue.