I retired after 20 in 1999...just as the gaming thing came along. Watching things develop over the next decade...I’d say around 10-percent of intel/comm community is into full-time gaming. One could make the case that they are obsessive/compulsive about gaming action.
I’ve been wargaming since ‘73 starting with Avalon Hill games, going from beer and pretzels games to detailed ‘monster’ games of detailed single battles to campaigns or entire wars or the history of the Roman Empire.
I had a platoon sgt into large, Campaign Games where the players manage the economies or at least the production priorities of the side they’re playing; fighters vs bombers,etc.
Those were board wargames, now known as manual wargames since the advent of computer gaming.
Personally I prefer the old paper maps and cardboard counters.
The only advantage I see in computer games is that the cat can’t lie on the map overnight and destroy your deployments.