They do get lamp-shy very quickly and NV is certainly a more forgiving method but lamping is still good if you get your tactics right. If you get it wrong you can make them permanently lampshy in one evening. I completely agree with the comment that you should avoid "hot" nights when they're out in large numbers. You can't shoot them all at once and all you'll do is alarm the by-standers and educate them. Better to be patient and pick them off at quieter times in ones and twos. This is less important if you've got a large amount of ground to range over and you've got a vehicle. You can wade in and hit as many as possible and then move on, or if you're on foot you can shoot individual spots in rotation giving them time to calm down before you visit them again but if you're concentrating on one colony you need to be careful or they won't tolerate repeat shootings. They'll vanish at the first sight of a light and if you persist they may simply stop feeding at night or in extreme cases they'll up sticks and migrate, usually to a place where you can't shoot them at all..
Choose dark nights with enough wind to bend the grass. That will cover your footsteps. Opinion is divided on the issue of colour but I've always found red light is less alarming to rabbits than white. Try to use as low a light as you can so that you've got enough to ID and shoot at your chosen range but no more. Don't keep the light on an individual for any longer than necessary. Be ready and shoot promptly. If you're shooting alone keep scope mag down so you can scan and shoot in one go from a ready shooting position. You'll have a wider field of view as well so you'll be more aware of where other rabbits are on the periphery of the light. Its also much easier to locate and pick up carcases if the mag is not to high. Its very easy to misread distances in the dark if you've dropped the rabbits on high mag.
I use a red NM 800 now but its borderline too bright for .22 lr ranges. I have it on a very diffuse focus. Better but more fiddly was the old Deben Tungsten lamp I had with a dimmer switch and a homemade red filter. Unfortunately the light unit was very unreliable and I fell out with Deben in the end but being able to scan on the lowest possible light levels, increasing only to the bare minimum needed to take the shot was very productive. You'll often find with bright lights that rabbits are comfortable on the edge of the light but will hop along with you as you scan to avoid being in the heart of the light which is very frustrating. Turn it down and they'll often stay put.
For this reason two-man lamping is a skilled business. You and your lamp man need to be a coordinated team. You must be following his lamp with the rifle and ready to shoot quickly. And he mustn't get ahead of you and start spilling light all over the field before you're ready with the crosshairs. A good lampman will have the knack of keeping rabbits in the periphery and knowing just how much light to give them, buying his shooter a little more time. And if you're on foot and shooting at .22 ranges you need to do it all without talking. It can take time to build that teamwork. Personally, for walked-up, short range lamping I prefer to go alone.
If possible, it would be good to practice on some less important spot away from your main buries until you've got the hang of it. And, it goes without saying, know your ground intimately and know it in the dark. Don't blunder into obstacles or stray too close to hedgerow tress and send dozens of pigeons clattering into the air. Avoid walking under ash trees, the twigs snap like fire crackers. And know your distances and where the rabbits will be. Don't blunder into the quarry before you're even got the lamp on and don't announce your presence by flicking light around the field from 200 yards away.
Wear silent clothes and make sure you are on top of your sticks or whatever type of shooting support you're using. Get in a tangle with a clacky tripod with rabbits all around you and its game over.
And one piece of kit I never go night shooting without is my Fenix headtorch. Its got a very small single red light which is operated by its own button which means I can switch on without having to cycle through glaring white lights to find the red one. Brilliant for discrete reloading. With the NV I can dip my head with rabbits 30 yards away and reload on the red light without them knowing a thing about it.