For modern warfare you need modern targets
Foto modern ships:
http://www.marinetraffic.com/ais/ru/...spx?level0=100
few thousend modern ships. Click in near any ship and you can see minimum 1 foto. Not good - is that tonnage not GRT, but Dwt. Dwt not statistic data. In any war statistic data is GRT. GRT for any ships can find in google frase for search: IMO (number). After it from many link find GRT in need ship.