With the second half of Season Three dropping in the next day or so, we are looking forward to the long-awaited John Rambo and John McClane operators.
All we know so far is that limited-time content will be live on May 19 at 9 PM PT, following updates to Black Ops Cold War on May 18 at 9 PM PT and Warzone on May 19 at 9 PM PT.
Along with new content, we will be getting three new points of interest in Verdansk 84 as well:

As explained in a previous article – this, of course is the 20th Century Fox Plaza portrayed as the Nakatomi Plaza in the Die Hard film. It will be replacing the skyscraper currently under construction in downtown Verdansk 84. Be prepared for hot-drops here!

Roughly 10 Survival Camps like this one will be placed across Verdansk 84 as a tribute to Rambo: First Blood Part II. Rumour has it that these will contain some loot, as well as special Dog Tags. Collecting enough of these Dog Tags may yield special rewards!

Found inside the aircraft hangars in the northwest of Verdansk 84. It is still a bit unclear as to whether this location holds anything special, but I guess we will soon find out. This may very well be a hot-drop too.
All-in-all, there will be much to explore when the new update drops.