You spawn where you died. If you are getting spawn raped, run away or ask your team to guard that area near the goal. (which a team should be doing anyhow)
Killing doesn't mean anything in this mode other than establishing position.
I don't mean getting spawnkilled, I mean being the defender of your teams base and after every attack you have guys spawning on your base that start killing you. Although this is weird anyway because they spawn in the middle of the hottest zone on the battlefield, they also keep spawning there and attacking you as a base defender, sometimes for the remainder of the map. I always ask them to get the fuck out, but if they don't I'm forced to start spawnraping, because they are morons.
Other way around sucks too though, spawning at a spot where three people have an attack chambered just waiting for you. Good luck running away then, or typing anything to your team, you die immediately. Spawn people that died near a base atleast 20 meters away from it. This also makes the melee fight a lot more interesting than both teams just spawning on the same spot and immediately killing eachother. Guys from different teams spawning on the same spot is weird anyway.