======== Weapon ========
WSuffix1Suffix2Index1Suffix3XXIndex2
Suffix1 (char) - action
R - ready
A - attack
O - out of ammo
F - flying
H - hitting
Suffix2 (char) - !!!WEAPON!!! Sound ID (from Proto)
Index1 (digit) - weapon mode
1 - primary
2 - secondary
Suffix3 (char) - target material
M - glass, metal, plastic
W - wood
S - dirt, stone, cement
F - leather
X - no target material (if Suffix1 not equal 'H' ) or weapon damage type is Explosion, Plasma or EMP)
Index2 (digit) - 1 or 2 (in code I found only presence of 1. I think files with Index2 == 2 are not used by Fallout)
======== Containers ========
ISuffix1CNTNRSuffix2
Suffix1 (char) - action
O - open
C - close
L - locked
N - unlocked
U - used
Suffix2 (char) - Sound ID (from Proto)
======== Portals ========
SSuffix1DOORSSuffix2
Suffix1 (char) - action
O - open
C - close
L - locked
N - unlocked
U - used
Suffix2 (char) - Sound ID (from Proto)