First game I went to a few weeks back was a night game.
Started around 7pm and 30 mins later, the sun was gone.
I'd definitely reccomend knee pads. Being able to just see the figure of things right in front of you while standing, it's a certainty just like I did, that you'll stumble/trip over some things, or even when you take a knee have something jab your leg.
Torches are hit or miss. I found using both high powered torches and dim have their problems.
High power is just screaming "Shoot at this light" whereas a dim torch didn't really light up areas.
I made use of it by turning it on and if shining it on myself and the floor after shouting but so everyone could see I was going back to spawn and wasn't an "alive player".
There was a few guys in the other team who did indeed run night vision, and yes we did get annihilated.
Certainly didn't annoy me in the slightest, nor those actually running night vision who got hit.
The only problem I found from that game in regards to torches was it basically being a huge target, or a team mate behind you with a powerful torch shining it ahead of him and right onto you. Cue most of other team then shooting at you.
There were numerous areas with deep mud/streams. One French (I believe) player was unlucky enough to find himself knee deep in mud during a game, and I was up to my shins in another part of the game site.
No torches does sound odd. I'd have thought that would be a serious health and safety issue.
One item to take? I'd say good supportive boots or knee pads. Definitely helped a lot.