Bug On The New Defense Mission Map

[umut121]

There are some bugs on the new defense mission map.sometimes aı can be spawned in things(ı mean,not in the actual area,in the decors,in the ventilation space's) and ıt can take 5 mins to find ıt with 4 man and cant be found just by looking there, you have to get your camera in the ventilation space and than you can see him. Also ı have big fps problems while playing this map,not others but this map.I even tried playing it on the lowest settings but this map always has fps problems with me