On 0 servers with real players, out of 4 Steam servers that run it now, fakes and empty ones included. Checked 05:06 UTC.
By its name, de_train_wingman is a community edit of the official de_train, not the map that comes with the game. Servers send it to players from the Workshop when they join.
Over the last 30 days de_train_wingman was the #648 map on CS2 community servers, with 2 real players on it at any moment on average - 0% of everyone playing. It ran on about <1 servers with real players at a time. Right now 0 people play it on 0 servers. It is busiest on Sunday around 21:00 UTC and quietest on Monday around 10:00 UTC.
Right now 0, on 0 servers from the Steam server list. Over the last 30 days it had 2 real players on average at any moment. Fake servers and bots are not counted, and Valve matchmaking is not in the list.
On Sunday around 21:00 UTC. The grid above shows every hour of the week in your own time zone.
The busiest right now: CS2 2X2 | 2v2 #11 [KZ] — CYBERSHOKE.NET (0 players), CS2 2X2 | 2v2 #34 [FR] — CYBERSHOKE.NET (0 players), CS2 2X2 | 2v2 #35 [GB] — CYBERSHOKE.NET (0 players). The full list is under "Servers running it now", and every server has its own page with its history.
de_mirage42,972 players on average
de_dust217,814 players on average
sandstone_fb14,338 players on average
de_mirage_fps6,284 players on average
awp_lego_25,401 players on average
awp_lego_2_fb4,796 players on average
de_mirage_christmas2,833 players on average
<null>1,273 players on average
bhop_emevaelx31,047 players on average
duels_mirage_1x11,015 players on average
de_inferno880 players on average
de_nuke751 players on average