I've found it's better to snipe from directly behind/beside the trucks if your whole team is hanging out in that corner for one reason. You are eliminating half the spawn points on the map basically forcing them to spawn in one of 3 spots, 2 of which are instant death. If they spawn on the streets by the little building, the sniper can more often than not grab instant spawn kills. It's money. The other 2 places they'll spawn is through the doors that swing open or back in by the scarab. If they spawn by the doors they will most often be alone with no backup and try to run in 4 vs 1 for an easy kill.
yea but if they all spawn int he middle of the town and come charging at the same time from the swinging doors, the sniper will basically be in trouble. If they all throw granades and BR shots/ smg shots at us, well be useless
If they charge through the doors that is exactly what you want. The sniper will be able to pop out from beside the trucks and get shots in and the rest of your team should be elevated on either side of them creating a "valley of death" in essence. It's damn hard to stick grenades close to people when they are on semi-narrow ledges above you.