Long post with minimal braggin
Ive vetted Raven twice, Valor once and am now almost done vetting SVER. I mainly play Sabotage simply because I hate being killed by something I have little to no control over (artillary strikes and such). I would rather die because a sniper sniped me accross the map then die because some guy is sitting in a turret and just shoots in my direction or someone orders an airstrike and blows everyone up.
By playing all 3 sides I know the weekness and strengths of both attacking and defending the 3 objectives pretty well. The best defense is a GOOD offense; I cannot stress this enough. If you push the attackers back toward their spawn the game ends easily; if you camp back at the objective or barely in front of it you allow them to be that much closer to securing it.
Nothing frustrates me more then being on a defending team and having people yell in the mic about falling back to the objective when an enemy hasn't taken it or even came close. Sabatoge is a tug-of-war match, you don't want to be near the pit as it increases your chances of falling into it.
My SABO tips
Valor C is all about controlling the supply room; I tell my squad this everytime we advance on C. If you let the enemy control the supply room they take out 1/3 of your faction by lobbing grenades constantly and therefore you can't get support when someone plants C. Another tidbit is that once you secure the supply room you now have to control the second level access from both spawn points (but not from the stairs leading from the supply room). You can choke their reinforements if you put people on the left and right and mow them down as they try to run back in. Its frustrating for Valor when they see the objective has been taken and they cant even make it inside the building itself because the opponent is spraying them as soon as they step a foot inside the door.
Raven C needs no explanation, its all about assaulting them from all three sides so that you spread their numbers out. This means that you might have to sacrafice some deaths so you draw more of them away from the center so people can advance. Controlling the supply crates is useless but controlling the spawn point from B does wonders. Raven A and B is the same as any other objective; offense needs to be offensive. If you camp the objective you will lose it; you have to push Raven back so that when your team mates die and have to respawn you have more time before Raven gets back the objective.
SVERs A and B are not that hard to get but you need massive amounts of movement, more then 3 snipers(total for all platoons) near your spawn and your wasting valuable resources. A - Control the left side of the objective (the side with rediculous cover) and push up to A. Have someone stand underneath the stair access and aim up (you can shoot through the grated floor) and you can take out the guy usually camping the stairs (remember this about all of SVERS stair access points as I'm killing you guys coming up the stairs easily by shooting through them down to you!). The first person going up the stairs should have a LMG and the guy right behind him should have his medkit out. As soon as the guy reaches the top of the stairs spray him with your magic blue smoke, swap to your rifle and try to mow them down. B isn't much different except you need a small squad controlling the ridge/bridge area. You don't need to advance from it but control it so you can provide cover for the guys trying to run up the middle. C is about planting and protecting after you reach it and honestly its pretty damn easy for the opposition. Just remember that SVER piles in from both the left and right mainly by the use of the staircase. Also remember that on the right side (your side) of C that most SVER don't even bother looking down or anything else when they cross that bridge. That makes it 10x easier to use that side to get behind them..sit back..and mow them down.
Back when I was Valor I spawned camped Raven and ended up going 54 and 24, then immediatly after I spawn camped SVER and went 45 and 20. Needless to say we won handidly both times and my XP was decent but not very high due to no FRAGO points. I have no need anymore to Vet; my clanmate and I will decide what faction we want to go with after we finish SVER and right now I'm not leaning towards anyone in particular. I admit it sucks to be spawned camped no matter what faction your on, just as it is kind of fun to spawn camp your opponent.
I'm an LMG user, I'm always an LMG user as it has been my weapon of choice on every FPS game I played (besides my stint with the 203 in BF2). I find it too accurate and wish they would nerf that aspect of it, the bullet pattern shouldn't be any tighter with a reflex as it is shooting from the hip. Also the amount of recoil is rediculously low, so low in fact that it really just seems like a AR with a larger clip! I would rather have them kick up the recoil 2x so that if you stand and hold R1 and don't make any adjustments you will be firing up at the sky in 5 seconds. Then reduce the amount of muzzle flash and call it a day. Also recoil will make the gun kick up and to the right (if your right handed) not just bounce all over the place as it currently does.
Oh yeah and get rid of the damn knives; cheapest kill in the entire game!! No reason to be able to swipe someone with a knife that is 2m away from you; that range is for shotguns not knives!