Unfortunately, even when combined with their torpedo launchers, the Tyrant's long-range firepower proved to lack the power needed to make it a serious threat to anything larger than an Escort. This led to two of the Tyrants that had been assigned to Battlefleet Gothic, the Zealous and Dominion, eventually being upgraded with weaponry salvaged from destroyed Chaos starships to provide them with the firepower equivalent of a Battlecruiser and making them deadly opponents at long range.