Frank O'Connor took "every angry email" he received about 'Halo: The Master Chief Collection' "to heart".

Halo

Halo

The 'Halo' franchise director has admitted the launch of the game - which saw four of the series' titles put together alongside their multiplayer modes - was one of the "lowest ebbs" of his professional career, and insists he has thought about it every night since.

In a blog post for Halo Waypoint, he wrote: "From a personal perspective, the MCC launch was one of my lowest ebbs, professionally. Every angry mail I received, I took to heart. I felt like I had personally let our fans down.

"I have not spent a single day since the night the game fell down in matchmaking where I didn't think about it.

"The hardest messages to deal with were the ones driven by disbelief. "How could you not know that matchmaking was going to break?" - fundamentally it was because we were testing it in an environment that we had set up incorrectly and with some (as we discovered later) faulty assumptions. (sic)"

Frank insists the 'Halo' team had the "best intentions" and he was "incredibly excited" to play the game himself.

He added: "We had, with the best intentions, created a massive and ambitious project that almost read like a Halo fan's wishlist. As a player, I was incredibly excited. And as an employee, I was proud of the work and effort the team had poured into making this thing so big. (sic)"

It comes after developer 343 recently announced there will be an Xbox One X update for the title and a wider one which will "help bring it forward and modernise many of the game's systems to take advantage of Xbox platform advancements since its original launch".