The 5 second sprint time is way too low. Players can't run across the street without running out of energy and becoming a sitting duck. I think any soldier should be able to sprint across a street. Maybe add another 5 seconds. It would be more natural if they had more sprint time and maybe reduce the sprint speed gradually after a certain time. But the Classic mode needs some more time to run and get out of the open area. This would also make it easier to play other game modes as well.

yes, because allmost all of the maps were not designed with that gamemode in mind.. example: wallstreet, try to jump in a window, you always get stuck..