The items in UT2004 falls into three categories concerning their respawn times:
- 82s (~3 x 27.5s) - It is really 82 seconds (because the exact time is actually 3 x 27.27s getting rounded down, but in other examples it will get rounded up).
- Damage Amplifier (UDamagePack class) - item that doubles your weapon damage
- 55s (2 x 27.5s)
- 100 Armor (SuperShieldPack class)
- 100 health (SuperHealthPack class)
- 27.5s (1 x 27.5s)
- 50 Armor (ShieldPack class)
- Adrenaline (AdrenalinePickup class)
- Ammunition (AmmoPickup classes)
- Health (HealthPack and MiniHealthPack classes)
- Weapons (Weapon pickup classes)
More (gamer) info about UT2004 timing here UT: The power of timing.