How to parachute down high places in Bad Company 2

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.

Far as I know, BC2 doesn't support this by default. You have to find a well-administered server. On "big name" servers, the keywords I've had the most luck with have been "admin" and "reporting". Keep in mind that a server admin can see all chat, so it might be best to type to your squad instead of general chat. Typing in general chat is an incite for flamewar, and it's more trouble than it's worth.

Personally speaking, I'd much rather see a squad chat report because the person reporting this is more interested in fixing the problem than starting some kind of a "he-said/she-said" flamewar in general chat.