I'm looking to turn the back 4 acres on my property into a playfield (for paintball). Currently, it's flat but bumpy field. Flat as in no hills at all, bumpy as in field mouse trails in abundance and lots of differing types of field grass. Bumpy enough that I can't really mow it w/ my zero turn mower (like mowing over moguls). The grass was recently hayed. I'd like to turn it into a nice flat playfield. I've thought about irrigation, but the grass never really even turns yellow here. There's actually too much water in the winter time, so I'm digging a drainage ditch around the perimiter of my property out to the road to keep some of the water away. I have pretty thick clay soil that doesn't drain very well, but I've been told that this would help. Anyhow, my tentative plan to install this field was to to rent a 40HP tractor w/ a 5 foot tiller and till the area I want to make a field out of. I figure it may take a couple passes. Then I thought I'd tow a piece of wire mesh fencing w/ a couple railroad ties tied to the top of it behind the tractor to flatten it all out. I guess then I'd seed, but I'm not entirely sure the best way to go about that. I know if I get the seed in by about October, there will be plenty of water. Other considerations: I have a lot of field mice. I've only lived out here for about 6 months and haven't really lived on land before, but it seems a lot of the bumpiness out in the field is due to their trails. I figure if I had a nice field and kept it mowed pretty well then they'd stick to all the other fields which offer much more shelter form predatory eagles, hawks, owls and cyotes (which are always flying/running around). That's pretty much it. Do you folks have any suggestions? Do you need me to clairify anything? Below is a picture of the property in case that helps.