The 2nd level was very good. Not only the rain, but also the landscape effect you applied to that level. Having the sky light up in synchronity with the thunder was realistic and new.
One should note though that thunder is often delayed by x seconds after a lighting flash. Sound only travels at 340m/s.When the sound and the lighting flash are matched perfectly it means the thunder is terrifying close.
If a random amount of time would expire between the flash and the sound, the effect would become more realistic.
Anyway, this map pack is getting a 5 based on the rain and the landscape effect.
WETPEACK is a map pack containing 3 maps with various forms of precipitation. It may be blood, rain or acid rain, but you're guaranteed to be soaked with something after playing one of these maps.