In that update, weapons expert Bangalore was given several new voice lines, providing some additional context to any weapons or attachments she pings. In many cases, it’s helpful information for players still learning the game, but it also appears to have revealed that a new weapon is on its way. When she pings the Prowler’s ‘Select Fire’ upgrade – which grants the weapon a fully-automatic mode – she says that that the item is perfect “if you have a Havoc or a Prowler.”
The catch, however, is that the Havoc doesn’t actually exist yet. It’s not available in-game, and nor is it a weapon from either of the Titanfall games. For Bangalore to be talking about it would suggest that it’s an entirely new weapon on its way to the game in a future update.