The Erfworld units with the rifles are firing single shots with greater skill while Parson is using the rifle's full potential by firing in bursts.The rifle looks like that due to all the modern techniques and attitudes that went into its design. burst and fully auto fire were included because it was understood that the concept of firepower and rate of fire were important strategic and tactical doctrines. It would be understood by any person in Stupidworld that people would be trained to fire multiple shots at once just by looking at this accessory.Erfworlders lack that understanding. To paraphrase a character from another comic: "This...could have only come from...(people)...that had access to...(it)...just handed to them rather than it evolving naturally!"Parson, a civilian who has never fired a gun, can still understand these basic principals of Stupidworld and can then apply them to the Erfworld accessory whose Signamancy resembles a modern rifle from Stupidworld. (Is there a tech tree!?) Thus, while untrained, Parson knows to fire the weapon in bursts.Erfworld units on the other hand fire single shot, just as if they were handed a particularly good bow (or crossbow?) and think nothing of how else they could attack with it.Charlie's Archons did fire in bursts and/or used auto-fire during their fight. It's possible Charlie had known something about the inherent meaning (or Signamancy to Erfworlders) of accessory he was handing out to all [BIG GAME CLEARANCE] Archons and gave instructions accordingly when he issued them...If they can be trained to fire like Stupidworld soldiers they might also perhaps be trained to move and think like Stupidworld soldiers as well. (Fight like skirmishers, find cover, move from cover to cover, don't bunch up, move as a group while still dispersed and spread out, show initiative in meeting objectives)Parson would understand that. Thus, the inherent Signamancy of the accessory ushers forth a new and potentially horrible period of Modern Warfare.Citation http://www.errantstory.com/2010-09-02/4929 (first panel, bottom bubble)ADDENDUM: Just one interesting application of this theory: Charlie's Archons are able to receive a leadership bonus from Charlie via Thinkamancy using the Dish when he personally directs a battle. Perhaps an accessory, with the Signamancy of a Military Radio, that uses Thinkamancy in a similar fashion, could be created and issued to units to mimic that ability.