The Reloaded map size is huge. An approximation is I believe around 12 times the size of FPSC world squared so about 144 times as large as an estimate. In any case its larger than you may ever be able to utilise fully.
Attached is a screen shot which will give an indication of scale. Though you obviously cannot see the whole world as most will be well out of sight left, right, behind or beyond the hills on the distant horizon the entities placed in the distance will give you some idea.
In the very far distance in the centre you can see some trees against the backdrop of the hills blue hills taking on the colour of the environment. If you look closely you can see a building. There are 3 and all roughly the size of a standard house/building. So small in the landscape at this range in the atmosphere of rendered perspective they are difficult to even make out as such.
Hope that helps.