The difference between teams and squads

Both games implement some combination of or have variations for each of the following features:

• Scope sway
• Gravity induced bullet drop
• Bullet travel time
• Body posture
• Clothing (Ghillies)
• Tools

Battlefield:BC2

Scope sway

None. BC2 does not implement a "breathing" aspect for sniping. Thus your crosshairs are stationary unless you move them.

Gravity induced bullet drop

Yes. As range to target increases the actual point-of-impact of your round with relation to the center-point of your crosshair increases.

With very long range laterally moving targets you have to put their torso in the lower-left/right quadrant of the scope and fire to get a hit.

I feel that it makes stationary target sniping ridiculously easy compared to MW2, but makes it harder to hit moving targets.

Bullet travel time

Yes. You must lead targets that are in motion.

Body posture

You cannot go fully prone in BC2. You can only kneel.

Clothing

Snipers wear ghillie suits. Their utility can be limited since they cannot go fully prone. It is still useful in large bushes and trees though.

Tools

There are no thermal scopes, heartbeat sensors, AC-130's or other anti-sniper elements in this game.

Call of Duty:MW2

Scope Sway

Yes. MW2 implements a "breathing" aspect for sniping. Thus, when completely stationary your crosshair will bob semi-randomly. You can also "hold your breath" for a short amount of time which reduces the movement, though not completely.

Gravity induced bullet drop

None. Whatever is under the center-point of your crosshair when you pull the trigger is what gets hit.

Bullet travel time

Yes. You must lead targets that are in motion.

Body posture

You can go fully prone in MW2. This decreases scope sway and makes you harder to see.

Clothing

Snipers can wear ghillie suits. The suit must be unlocked. Different camouflage colorings can also be unlocked.

Tools

As a sniper you can unlock a thermal scope which makes sniping super easy-mode. However, you are also terribly vulnerable to things like AC-130's, Harriers, etc. unless you are using cold-blooded.

Individual or Grouped

The damage you do is simply a function of the number of C4 you set off, whether you set them off individually or in groups.

Count

In his excellent analysis of BFBC2 damage, Den Kirkson analyzed the code and found that C4 does 290 damage at 0-1 meters, and then does a linear drop-off to zero damage at 8 meters. (A human without body armor in the game has 100 hit points, a tank has 1250.)

Kirkson doesn't document, and I don't know, exactly how much health an MCOM station has. But it takes 12 C4 to take out an MCOM station, so the health is somewhere in the neighborhood of 3400.

Which is a lot.

MCOM Collapse

Because of the MCOM's massive health, it's always better to take out a station indirectly by taking out the building when possible. This guide gives details on how many C4 it takes and where to place them on some of the Rush buildings. It takes much less C4 than taking out the MCOM directly.

Placement

It's fine to place your C4 within 1 meter of the MCOM, but be sure no indestructible obstructions will interfere with the blast radius.

Personally, I like putting them on the ceiling since enemies are least likely to look there when running in to disarm the MCOM.

Sequence

1. Place the C4
2. Arm the MCOM
3. Run and hide
4. Toss a motion sensor if you have one
5. When enemies come to disarm the MCOM, detonate

I used to arm the MCOM before setting the C4. That was... um... a really bad idea. Gives people extra time to find you before you hide. Don't do that.

Loadout

People often think of C4 as a recon thing, but if you want to be a C4 thug you should really play assault and use one of the "all classes" weapons, which will let you pick C4 as your add-on. Your ammo crate gives you an unlimited supply of C4.

Regardless of which kit you play, if you take the explosives perk you'll be able to carry 6 C4 at once, enough to take out many buildings without re-arming.

Out of Bounds

One favorite tactic of... certain people... is to have a friend load up a UAV with C4 and pilot it right to the enemy's MCOM. Do this a couple of times and you can take out the station with no risk.

Except for the risk of getting cursed out, kicked, or even banned, because it's an incredibly lame tactic.

So don't do that.

Use Mines Instead

The engineer's mines have the advantage of staying around and active after his death. A recent poll in the BFBC2 forums shows support for this method.