Ichthyosaurs should have a yellow blood when wounded because they are Xen creatures like in Half-Life 1, but here, hurting them shows red blood.
Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.