Tactical is a floofy buzzword from the firearms community that has also leeched into the light and all-around gear community.
Type of beam is dependent on mission profile. If you are doing search and entry in close quarters, room sweeping I'd never want a pencil-beam. Flood all the way.
Outside? Maybe if you want to use visible light, there are much nicer alternatives without alerting anyone to your presence.
That being said, one of my favorite quotes is:
"Superior gear will never make up for a lack of training or attitude."
Tactical isn't in the 'hardware,' but rather it lies in the 'software' - the one utilizing the device.
That being said, most companies will try to sell tactical lines, and most will be productive. God, I just bought a shotgun that says "Tactical" on the side of it. I guess this also makes me a mall-ninja. *Sigh*