If it is a dry year......
Hike and hunt uphill in the mornings.
Mid-day can be a grind. Take a nap, over a water hole.
Water in the afternoon/evening.
Everyone in the unit will know where the water holes are. Get there early enough to be setup for the afternoon hunt. Plan to have several other hunters walk in on you while you are setup over the water hole, and don't be disappointed when it happens. Smile and give them a nice wave. Don't be a jerk if someone else is already set up at a waterhole you were looking forward to sitting over.
Along those same lines, if it is an Eplus unit, recognize that you will run into all kinds of people - hunters and helpers - there are a LOT of Eplus tags, and some of the tags get resold for high dollars - some hunters and act reasonable, other "hunters" and their posse - not so much. (Their behavior can be downright despicable. Do not join their ranks.) Don't be surprised if you call in other hunters, and don't be surprised if they call you in, either.
Also, for hunting tactics - consider carrying a couple of days of water in with you later in the hunt. Depending on how far apart the roads, the elk know where the pressure is coming from and will quickly migrate to areas without pressure. It may take a couple of days, but it will happen. (Which is why you don't necessarily need to do it on day #1.) Hauling some water in for a couple of days stint can really pay off. Everyone else will be truck hunting due to water shortages too so you could have an advantage after a couple of days if you take this approach. And remember, water weighs 8 pounds per gallon - plan to go through a gallon per day - so 3 days worth of water will be 24 pounds. Choose your backpack accordingly.
Sleeping on the ground can be an option, just consider the various nighttime critters in the desert can be different than other states.
If it is a wet year - - - forget everything I just typed......
