On Animation Debris
Setting this to 'yes' tells the game to use debris behaviour and additionally meteor logic (falls from sky) for this animation and enables use of flags controlling said behaviour on this animation.
IsMeteor=yes causes TurretAnim=turret SHP and TurretAnimDamaged to be ignored.
On Voxel Debris
Setting this to 'yes' tells the game to use debris behaviour and additionally meteor logic (falls from sky) and Spawns logic will be enabled.
Setting this to 'yes' tells the game that this voxel debris animation spawns tiberium/ore on impact. The type of tiberium/ore spawned is hardcoded to Vinifera. YR hardcode to the first in [Tiberiums] list
Note
See also