Other maps do load. My friend has the same problem. Both of us are on 2025.9.2

Error log.

Client Version: 2025.9.2
java.io.FileNotFoundException: https://content.faforever.com/maps/faf_coop_operation_overlord_surth_velsok.v0000.zip
	at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:62)
	Suppressed: The stacktrace has been enhanced by Reactor, refer to additional information below: 
Assembly trace from producer [reactor.core.publisher.MonoCompletionStage] :
	reactor.core.publisher.Mono.fromFuture
	com.faforever.client.task.CompletableTask.getMono(CompletableTask.java:30)
Error has been observed at the following site(s):
	*__Mono.fromFuture ⇢ at com.faforever.client.task.CompletableTask.getMono(CompletableTask.java:30)
Original Stack Trace:
		at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:62)
		at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:502)
		at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:486)
		at java.base/sun.net.www.protocol.http.HttpURLConnection$10.run(HttpURLConnection.java:2055)
		at java.base/sun.net.www.protocol.http.HttpURLConnection$10.run(HttpURLConnection.java:2050)
		at java.base/java.security.AccessController.doPrivileged(AccessController.java:571)
		at java.base/sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConnection.java:2049)
		at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1619)
		at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1599)
		at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:223)
		at com.faforever.client.map.DownloadMapTask.call(DownloadMapTask.java:51)
		at com.faforever.client.map.DownloadMapTask.call(DownloadMapTask.java:19)
		at javafx.concurrent.Task$TaskCallable.call(Task.java:1399)
		at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
		at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
		at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
		at java.base/java.lang.Thread.run(Thread.java:1583)
Caused by: java.io.FileNotFoundException: https://content.faforever.com/maps/faf_coop_operation_overlord_surth_velsok.v0000.zip
	at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1994)
	at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1599)
	at java.base/sun.net.www.protocol.http.HttpURLConnection.getHeaderField(HttpURLConnection.java:3235)
	at java.base/java.net.URLConnection.getHeaderFieldLong(URLConnection.java:649)
	at java.base/java.net.URLConnection.getContentLengthLong(URLConnection.java:511)
	at java.base/java.net.URLConnection.getContentLength(URLConnection.java:495)
	at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.getContentLength(HttpsURLConnectionImpl.java:367)
	at com.faforever.client.map.DownloadMapTask.call(DownloadMapTask.java:47)
	at com.faforever.client.map.DownloadMapTask.call(DownloadMapTask.java:19)
	at javafx.concurrent.Task$TaskCallable.call(Task.java:1399)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
	at java.base/java.lang.Thread.run(Thread.java:1583)

For bonus points, Operation Tha-Atha-Aez doesn't appear to be possible to finish at the moment. It doesn't open up into the final map area due to some kind of map trigger problem. I've played through twice and hit the same issue. The only replay of this map on youtube post-2020 I can find is of some other guys hitting the exact same problem.
The Leaderboard for this map is totally empty.