What an interesting thread, definitely a controversial argument regarding whether or not Halo should have sprint.
I am going to provide my own analysis for the direction that Halo has taken, and why I feel that it has taken the direction that it has in Halo Infinite.
Personally I don’t have a problem with sprint, however I can understand why people don’t favour it. I loved the gameplay of Halo 3 and I loved having to manoeuvre around the map in creative ways; using jumps and crouch jumps & landing on ramps for momentum.
Halo Reach & Halo 4
Starting from where sprint was introduced in Halo Reach, this was the first game that had spartan abilities. They had taken quite a different direction inheriting bloom and a new style of gameplay compared to Halo 3. Due to bloom, the competitive circuit eventually died, as it was due to bloom that the speed of competitive gameplay slowed right down. Once zero bloom was introduced it was too late, although the fast paced gameplay had been restored.
When 343 was established to create Halo 4, they were then inheriting a game with spartan abilities. I feel personally that there was a huge emphasis on the story - which is fair, due to how Halo 3 had ended - that there wasn’t as much focus on the multiplayer; including forge. I’ve found that forge and custom games is the backbone of multiplayer, as forge allows the creation of new competitive maps and new fun gametypes.
Halo 5
Returning back to the point of multiplayer - just like Halo Reach - everyone had a different spartan ability. Even though sprint was a default ability, everyone was not on equal ground when it came to multiplayer gameplay; excluding competitive. It’s for this reason that I believe that Halo 5 was designed to resolve this, by giving everyone the exact same armour abilities; putting everyone on equal ground.
The armour abilities that were introduced were:
- Sprint - Clamber - Ground Pound - Spartan Charge - Dash - Slide - Smart ScopeNow that everyone was on equal ground, it completely changed the style of gameplay. The abilities introduced allowed for better and faster manoeuvrability. It is for this reason that Halo 5 remains the fast paced competitive game that it is today. The upsides from this was that it revived the Halo competitive circuit - including the help of micro transactions - and introduced a new fast paced style of gameplay, however the downsides remain the same, it has all become too fast paced.
A note to add, to nerf sprint in Halo 5, they had removed the ability to recharge shields while sprinting; I believe that this was a great addition, otherwise you could sprint with no consequence like in Halo 4.
Halo Infinite
From what I had witnessed with the Halo Infinite reveal, they have kept the same armour abilities and have removed the following:
-
Ground Pound - Spartan Charge - Dash - Smart ScopeLeaving the 3:
-
Sprint - Clamber - SlideI feel that this was a very smart decision - like Halo 5, despite the long term outcome - and it will help balance the multiplayer gameplay. For me personally, it’s because of these abilities that I really feel like a super solider, and I love the new manoeuvrability regarding the multiplayer environments; I feel it allows for more creative gameplay from the player. It is also exciting that they have introduced gadgets again too.
In conclusion I really like the new direction that Halo Infinite has taken, and I am really looking forward to the new multiplayer. Like in Halo Reach and Halo 5, I feel that it would be great to add a classic gametype, so that players on both sides can feel satisfaction.
Again I do not hold either side superior to the other, as I feel both hold valid points. This was just a summary that I have put together observing the development of the Halo franchise from Halo 3.
Thank you for taking the time to read my reply 
GG Panda GG <3