▁Re leased ▁initially ▁as ▁five ▁ 1 5 - min ute ▁episodes ▁online , ▁it ▁was ▁later ▁released ▁as ▁a ▁nin ety - min ute ▁extended ▁cut ▁on ▁DVD ▁and ▁Bl u - ray . ▁Microsoft ▁cons iders ▁it ▁the ▁" next ▁step " ▁between ▁advert ising ▁material ▁and ▁a ▁full - length ▁film , ▁and ▁Frank ▁O ' Con nor , ▁development ▁director ▁for ▁the ▁H alo ▁franch ise , ▁has ▁said ▁that ▁a ▁film ▁will ▁be ▁made ▁" when ▁the ▁time ▁is ▁right ". ▁Live ▁action ▁short s ▁were ▁also ▁used ▁in ▁the ▁advert is ement ▁of ▁H alo : ▁Re ach ▁foc using ▁on ▁the ▁Spart an ▁su pers old iers ▁of ▁the ▁H alo ▁universe . ▁Two ▁short s , ▁The ▁B irth ▁of ▁a ▁Spart an ▁and ▁Del iver ▁Hope ▁were ▁made , ▁again ▁to ▁appeal ▁to ▁customers ▁who ▁were ▁un famil iar ▁with ▁the ▁series . ▁ ▁Fil ming ▁In ▁early ▁ 2 0 0 9 , ▁McC ann ▁received ▁a ▁brief ▁to ▁create ▁a ▁new ▁campaign ▁for ▁the ▁latest ▁entr ant ▁into ▁the ▁H alo ▁series , ▁a ▁first - person ▁shoot er ▁called ▁H alo ▁ 3 : ▁O D ST . ▁It ▁would ▁be ▁the ▁first ▁game ▁in ▁the ▁franch ise ▁not ▁to ▁feature ▁the ▁series ' ▁protagon ist , ▁the ▁Master ▁Chief . ▁McC ann ▁returned ▁with ▁a ▁pitch ▁for ▁a ▁campaign ▁in ▁the ▁same ▁ve in ▁as ▁Bel ieve , ▁aim ing ▁to ▁human ize ▁the ▁soldiers ▁featured ▁in ▁the ▁H alo