Well to start I've been playing cs:s since I was 7 years old and i bought gmod10 as soon as it was out, i had 1 1/2 years of gmod9 experience and completed half-life 2, +ep1 and opposing forces. HL2 i completed in less than 5 hours (timed) on medium though i didn't time it on hard, yes the completed ones are completed on hard, no i haven't lied and yes i also completed quake 3 arena , unreal tournament 2007 2005, doom 2, (not doom 3 D: