Since Blood series is on sale [$2.99 each], I'll throw in this link about a cool mod for the original Blood.
One Unit Whole: Blood - Launcher ProgramBasically, this program is a nice launcher for Blood and also contains mods, source ports (ZBlood), Yang [for MP purposes], config setups for DosBox, and 700+ user-made maps.
If you install the mod, YOU WILL need every patch [there's three of them] -- the patches are NOT cumulative.
Here's what the Launcher program looks like:
