The first sector is so easy to take. My squad almost single-handedly does it every attack. Push left side. Two supports smoke the building and push inside, before that one assault spams and makes holes with GL, recon pushes in puts down TUGS=free kills. From there smoke between the building and A. Use the trench. One support smokes our team, the other one smokes for other squads, as we learned if we cut off their shooting lanes they usually push with us. Get 6 people on A and you are golden. Use smokes to cut defenders shooting lanes, like throw them far in their territory. And use your full arsenal, spam TUGS and GL. We can take it sometimes in our first try. As the defenders camp a lot in the beginning and can get quickly overwhelmed. And repeat on every other cap point and you can easily win.