Delivery and Takeout is a pretty simple trophy to get, when playing on Normal. Upon loading the chapter, immediately take out the enemy walking towards the building, wait for the door to open, there will be 3 enemies inside the first room, which will be pretty easy to take out. The next area, there will be a soldier running away from you, and another one or two on the top area. Throw a grenade towards the inside corner the direction you're moving towards, and go down the stairs. Hopefully, the grenade took out the 3 enemies in the area, and there will be two more guys looking towards the objective. Once all those guys are disposed of, the door will open to the next area with 3 soldiers and one scientist. Dispatch all of them, and move immediately to the left. This is imperative as this is the first objective. Once that is taken care of, sprint down the stairs and take out the scientist (or two, depending on whether or not you got the first scientist) and run and plant both of the C4, and check your time and the bottom left corner of the screen. If you're under a minute, complete the level and the trophy will unlock!