No you weren't mean. I thought you weren't supposed to put snipers in an area that they would be really powerful. I would fix this map but Its a thing of the past. I'll jsut try to edit my newer version.
Weapon placement in general depends on the map, so try that out and if it doesn't work leave it where it was, and one thing i forgot to say is in the screenshot with the sniper, there's 2 brs almost right next to each other so move them away. Good luck with map.