On the new map right behind Ins Spawn in push Insurgent you can climb the rocks and get an overview of the whole map.
You can strafe onto the pillars on A push security and cover point from an elevated position from the catwalk above A.
You can use a truck to get over a wall and onto one of the middle buildings from the center of the map on the ridge (push Ins bravo point). Place it by the fence, and use the fence to jump onto the skybox. Could be fixed with a wall placed where the fence is. From there you have access to the roof of the building. Could be used for defense in push sec.
From a few of the rocks in the same passage way, getting out too close to a wall will push you through the rock face and you will fall through the map and die. Seems just to be a bug with the trucks.
Some rocks on the left side of the map (from push sec) do not have proper collisions and you can get into those rocks.
You can use a truck boost to get onto the middle wall that cuts the map in half.
By jumping on the wood fence by C push sec, you can get into the stadium seats that overlook the objective.
Video will be up soon!