The Hidden Beta 5(i) mod for Half-Life 2

In the early 1950s human genetics experimentation was taking its first, tentative steps. Amongst many other black projects, a team of British scientists working at an Infinitum Research experimental station stumbled across some remarkable phenomena involving DNA manipulation. This led to deeper research with dangerously unpredictable results, often leading to human patients losing their lives in irresponsible and immoral experiments. Time passed on, and by the mid 1990s the failure rate of the experiments had been reduced from 75% to a mere 15%, enough for Infinitum to move onto the next stage: Biological Light Refraction. The British team were hoping to unravel the possibilities of light manipulation to create the perfect covert military agent. Early into the new millennium, due to a gross miscalculation, a series of tests on Subject 617 led to a massive synaptic trauma leaving the patient with multiple genetic anomalies. The subject was left in constant pain and with unstable DNA.