Don't think the game could do vaporization which would be appropriate for a nuke.
But with the physics engine of the game with how C4 packs are cumulative effects, I would LOVE to see something with the forces set to "nuke" blow somebody up.
Need to make a mod for BF2 where all of the explosive rounds are super nasty.
M203 rounds with the explosive effect of 5 C4 packs. One C4 pack with the effect of 5 C4 packs, giving a person with 5 packs laid in one spot the explosive effect of 25 packs. Then get 3-4 people on a map to sit there blowing the ever loving fuck out of things, send an APC from the front bases on Oman straight over the carrier with just 1 booster charge :)