Always read the mission description. There are lots of cases of similar terrain, and some similar naming structures.
In this case, you probably went to a bounty hunt mission for the goblin bank that does use the temple map tileset, however this mission limits what you can use. You are limited to infiltration category weapons, so nearly all 2 handed weapons are not available for use.
So two versions of the same map with similar but not identical names on the geoscape, but very different content and execution.