Does this talent apply to heavy weapons that do not fire semi or full-auto? Like the Heavy Flamer, the Plasma Cannon, and the Multi-Melta? RAW seems to imply it doesn't:
Whereas a weaker man might be sent flying by the recoil of a heavy weapon, this character’s strong physique allows him to remain standing. The character can fire heavy weapons using Semi-Auto Burst or Full Auto Burst without bracing, and he does not suffer the –30 penalty for failing to brace.