I have seen mention of Bridgestone Duellers........No, no, no! They are not an off road tyre, very, very biased to road use.
Had them from new on two of my previous L200s, deliberately scuffed them out as quick as I could, so I could get some BFG A/Ts on.
Even for field use, you need a tyre with quite an aggressive side wall, nothing comes close to BFGs. Don’t scrimp on decent AT tyres. Had two BFGs fitted on my Ranger last month, £260, worth every penny. It isn’t JUST about how long they last, although you should get 60K plus, it is about how they perform, and nothing, but nothing performs like BFGs. The new ones are even better.