zeeklancer said:
Or was this just too much for my Disco?
Listen to the people who are giving you serious advice because it is good advice. In your wheeling career, you will get stuck. We've all been stuck. It happens. Go wheeling in pairs so there is always someone to pull you out. What you'll learn as you drive offroad is how to approach situations knowing the strengths and weaknesses of your truck at that time.
So, look at this particular situation. You have ~5000lb stock truck. You're looking to cross a field that has 4in of standing water, so the ground is going to be very soft. As you go through, the treads of your tires will get gummed up with mud. If the tires don't have an "open" tread pattern, the tires can't effectively dig your way through the field. At that point, the more you gun it, the more you sink. You may as well have had bowling balls attached to your axels. 5000lbs; no traction; bad.
There are not many things you could have done at this point, unless you had some sort of recovery gear. If you have CDL (diff lock) on your truck, you could lock that and try to turn your steering wheel left and right to see if you can get some traction. You could try to burp your gas pedal to see if you could clear the treads. You could try to deflate your tires to get more traction. But, in this particular situation, I don't think there was much you could do.
As far as LR drivers ed, ask these guys anything, but search first
There are lots of people on here who have been in some pretty sticky situations that will be able to help you out.
Also, maybe you should go on a dealer event. The pace is often slower (ok, alot slower) than going on your own, but they'll give you off-road 101 for your car.
Happy wheeling!