I think a good choice for this mission would be the Surefire L5. Reasons: (1) you can buy it used for under $150; (2) it has a Luxeon 5 led--no bulbs to break; (3) it is built strong for law enforcement use; (4) it has a deep reflector which projects a beam further than the other L-series lights, which would be useful in a combat situation; (5) it has a relatively small head, making it pocketable, unlike a turbohead of the M-3, M-4 type; it uses CR 123 batteries (two of them), which are easy to carry and replace in the field; (6) it will accept a single rechargable li-ion 17670 battery if you choose to use rechargables; (7) it will accept the Surefire SW01 and SW02 switches, which are excellent for tactical lights, although the stock switch is quite good; and (8) it has rubber washer in front of the tail switch, making it easy to use the light in a cigar-type grip; (9) it throws a wide beam as well as a good medium distance beam, making it useful for searching, camp set-up, and general flashlight use. Surefire lists the light as producing 100 lumens, but it is well-known that Surefire understates their numbers. My own L5 seems to produce something closer to 120-130 lumens. The only thing the L5 does not have is multiple levels of brightness, and if that is something you care about, you might consider the new NovaTac. Not as strong but a lot smaller and $150.00 new.
bill lafferty