Rialto map from CS:GO for CSS v91

The de_rialto map from CS:GO was introduced to the game as a result of the launch of Operation Hydra. The action of the map takes place in Venice, on the territory of an unfinished bridge, which thematically connects it with de_canals. The terrorists need to destroy the bridge, while the special forces are engaged in preventing this. Such a map for cs source looks very non-standard and fresh, you can admire the wonderful Italian architecture and unique streets located on the river. The location has soft lighting and a generally pleasant setting, which is completely identical to the original cs go.
Updated on 05/19/20 (bug fixes).