Welcome man.
My first ever game day was at frontier and I've been a good few times since.
Everytime I've been, I have always felt welcomed by staff and other players. They have had a number of owners over the years but theyve all been good. It's a site that I would always go back to.
The site itself is woodland that has a small "range like" part to the left with obstacles (caravan, old hay bales rtc) and then the main game area to the right, which is woodland is shaped like a bowl with a small fortification in the middle and a few little hides holes.
Dont worry about being new, there's always new players no matter what site you go to. Everyone starts off as a new player ?
If your based in Stafford, have a look at Stormforce (Rugeley) and Anzio Camp (Leek, but its days are numbered due to some work planned for the site; defo try this 1 before it goes). Theres also a Cqb site in stoke ran by West Midlands airsoft.
Good luck and perhaps see you on the field one day.