A few questions.

[DrSteam]

Having great fun playing Operation Arrowhead, though I've just realised that you guys who play on a Tuesday night won't be playing OA! Do you think this might happen at some point?
  Mainly I've been  focusing on boot camp, the armoury and online game play. The single player campaign doesn't really interest me.
 Multi-player is very cool. Although the first few times I managed to kill the odd friendly and the odd civilian. After much apologies I managed not to get kicked. Though I did get kicked last night for getting into a chopper, flying 20 metres into the air then hitting the ground sideways at speed. Which is fair enough. Obviously need more practise in the armoury.
A few questions:

a) How do you find a distance to target during night ops, as the binocular range finder doesn't work in the dark?
b) Is there a a website somewhere that has a list of all the weapons with their range and info on scopes etc?
c) How do you get hold of one of those sniper camo suits that makes you look like an ewoke? And does it make any difference to how easy the AI can spot you?

[BrotherTobious]

DrSteam

Glad you are enjoying it, and playing online, I hope these answers will help in some of questions:

I've just realised that you guys who play on a Tuesday night won't be playing OA! Do you think this might happen at some point?

Check this post out about OA server.
http://www.deadmen.co.uk/forum/showthread.php?31570-ARMA-II-OA-Server

a) How do you find a distance to target during night ops, as the binocular range finder doesn't work in the dark?

Scanning will help with this hit your spacebar and should give you info you need.

b) Is there a a website somewhere that has a list of all the weapons with their range and info on scopes etc?

Checkout BI forums, and Armaholics

c) How do you get hold of one of those sniper camo suits that makes you look like an ewoke? And does it make any difference to how easy the AI can spot you?

When you take the marksman you should get the suit I believe but I maybe wrong.  But it more to do with you movement and noise, and if you standing on a brow of a hill with the full moon rising behind you.

Hope that helps mate.