Well not sure where you live but the first thing I would do is to create an Isportsman account. Just google search Fort Campbell Isportsman and it will pop up. Once you have completed the Isportsman registration you will need to go to the Outdoor Recreation building off of Lafayette Road and they will verify your account. Once this is done you can purchase a post permit, they are $60.00 for deer, turkey and small game combined or $35.00 each for just turkey or deer if you only want to hunt one or the other, they will want to see your hunting license and hunters safety card before they sell you the permit so make sure you bring those with you. On the same day you get your post permit you need to register any firearms you are going to be using to hunt with on Fort Campbell at Gate 4. You do not need to bring the actual guns themselves but will need to have the serial numbers for the guns. Afterwards you will use your Isportsman account to reserve a hunting area. Make sure you check the expiration date for your weapons registration. I know mine does not have one because I am active duty but I think if you are a civilian you have to renew it once a year. If I missed anything I am sure someone else will let you know. I would just say it will probably take you about two hours on post to get everything done. Wait until after February 28th to do it because that is when the post permits expire they are good from March 1st through February 28th the following year, there is no sense in getting one now and have to get another one before turkey season. I hope all this helps