halo 4dFriendly reminder that the orinal cover of Halo: The Flood was a straht up Doom reference. I like to think that the Doomslayer and MasterTwo different lasers are combined in the HALO 4D. The Halo ® fractional laser delivers two different wavelengths, 1470-nm and 2940-nm simultaneously. The Dynamis Fotona 4D ® uses