There is an easy way to boost it by yourself. Well, it's almost cheating, so throw your pride away before you do that.
1- Search for a server with 3 players. You can do that by checking "empty" and "1-15" in the server filter options. Obviously, you should check "Obliteration" and none other in the modes, and no particular map. I also personnaly check "normal" as I hate hardcore, but that's optional.
2- You'll find yourself in a 2 vs 2 game of Obliteration. This game will either start right away or restart after a few seconds. Either case, before you spawn, go to Team Settings and switch side. You'll end up in a team of 3 against the only other player.
3- Now run to the middle of the map asap (the easiest way on most map is to use the parachute spawn point) and be the first on the bomb. As there is only one player defending it should be pretty easy to score. If you're still not feeling safe, you can wait for your team to back you up. Run to the closest point, plant the bomb, and wait/defend.
The beauty is that a game stops and restarts if there is only two players left. That means that if the lonely player in the other team quits, you can still play with three players against none and plant a bomb or two before either the server fills up again or another player quits and the game restarts. And even if it restarts, there is a generous enough timer to let you finish planting a bomb if you're close enough.