Well, there's obviously lots of options. You gotta pick one that's right for you.
With the specs you listed, the Trustfire Cree XML is perfect. I use one at work because its cheap to replace, uses rechargeable batteries, and puts out 3800 lumens. It does not have an adjustable beam, but it creates a very bright flood. I mostly use it for searching areas. Its here:
https://www.amazon.com/gp/aw/d/B006QQUJ1M/ref=redir_mdp_mobile?ref_=cm_sw_su_dp.
On my belt, I carry an Insight HX200 that I love.
I have another light from WWW.thru night.com that has a really good beam and is seriously bright, but it's a $200 light.
Sadly, Maglite is way behind the lumen curve and their weight is an issue. Back in the day they were cool, but they haven't advanced as much as they should.
I won't buy anything from Surefire as their prices are ludicrous. They have the Dominator light out that is $950 or more and is nothing more innovative than anything anyone else is doing.
Honestly, for what you're gonna use it for, that Trustfire light is the best bang for your buck. There are 3 of those on my squad and we haven't broken one yet.