▁an ▁all - ter rain ▁heavy - we ap on ▁system ▁to ▁deal ▁with ▁the ▁varied ▁ge ographic ▁conditions ▁of ▁the ▁col ony ▁world s . ▁Only ▁two ▁companies ▁made ▁it ▁through ▁the ▁extensive ▁requirements ▁testing : ▁Ab itate ▁and ▁Sol t ic . ▁ ▁Ab itate ' s ▁F 4 4 A ▁" C rab gun ner " ▁was ▁a ▁ 1 2 - meter , ▁ 4 - leg ged ▁walking ▁tank . ▁Sol t ic ' s ▁own ▁H 8 ▁" R ound fac er " ▁was ▁hum ano id , ▁with ▁a ▁single ▁pilot ▁located ▁in ▁the ▁head . ▁The ▁simpler ▁C rab gun ner ▁became ▁the ▁main st ay ▁of ▁the ▁early ▁Federation ▁forces , ▁but ▁it ▁was ▁the ▁Round fac er ▁that ▁would ▁revolution ize ▁mechan ized ▁war fare . ▁As ▁the ▁re bell ion ▁grows ▁in ▁number , ▁the ▁Federation ▁introdu ces ▁new ▁models ▁of ▁Com bat ▁Arm ors ▁to ▁opp ose ▁it , ▁many ▁of ▁them ▁designed ▁to ▁ful fill ▁specific ▁roles ▁( des ert ▁fighting , ▁cold ▁weather ▁deployment , ▁etc .). ▁Un like ▁other ▁an ime , ▁these ▁new ▁machines ▁are ▁production ▁models ▁and ▁rarely ▁one - of - a - kind ▁pro tot ypes ▁( the ▁Dou gram ▁itself ▁being ▁the ▁most ▁notable ▁exception ). ▁Com bat ▁Arm ors ▁used ▁by ▁the ▁Sun ▁F ang ▁reb els ▁are ▁marked ▁with ▁a ▁gold - border ed ▁red ▁triangle . ▁The ▁Federation ▁Occ up ation ▁Forces ▁use ▁gold ▁che v rons ▁to ▁indicate ▁the