How do you complete crossing the line mission on sift heads world act 2?

To complete the "Crossing the Line" mission in Sift Heads World Act 2, you need to follow a series of objectives involving stealth and strategy. First, navigate through the level to avoid detection while eliminating specific targets. Utilize your environment for cover and plan your moves carefully to avoid being spotted. Finally, ensure you complete any additional tasks required to successfully finish the mission and advance in the game.