Merc compound

The merc haven was a terran structure featured in StarCraft II, required for unlocking reapers. It has been renamed to the shadow ops.

Development
The merc haven once trained reapers, instead of allowing the barracks to train reapers. The training of reapers worked was similar to hiring units from mercenary camps in WarCraft III. There was a maximum number of units "in stock" at any one time with that number slowly regenerating over time. The cost of reapers was low with a build time of one or two seconds. Four reapers could be bought from a single merc haven in quick succession with another reaper becoming ready to "hire" every thirty seconds.

Trivia
Above the merc haven is a holographic woman doing the night elf dance, which is a reference to Blizzard's WarCraft franchise.