This is a fairly typical nightcache and should not give you too many problems. Follow the trail of white firetacks towards your prize. When you find a cluster of orange firetacks, you know you have arrived at the final.
The trail sticks to well established paths and tracks through the woods, and there is no need for bushwhacking. The tacks themselves have been placed at or near junctions in the trail and you cannot always see each one from the last. You may have to investigate up the various trail options until you pick up the next tack. There are a couple of long stretches tacks could not be placed so these might require a leap of faith. Where possible a tack has been placed along the way, but this is has not always been possible. It may be a good idea to waymark the tacks as you go along in case you need to backtrack.
Please don't go bushwhacking, this is not required and we don't want to disturb wildlife
On the subject of wildlife, you should see lots of deer up on the common, please treat them with respect and especially keep your geohound on a leash and under control at all times
It's hard to judge how long this cache will take to do (I will update this info after the first few finders), but I would allow an hour