There was a lot of bugs. I'll try to give you some tips that would make the game way better.

The character moves with the camera, which can be very problematic especially when talking with Colonel. To fix that you should make the camera move independently on the character rotation on the Y-axis. Or at least, adjust the rotation point of the character.

There is no check for if the player is on the ground. So, you can jump indefinitely which basically allows you to fly. At least, that allowed me to explore the map ! But I don't think that was the point of the game. To fix that, you could add a simple check on if the character is grounded, and make the jump function dependant of this check.

To be honest those were the only major glitches. Though there are other visual and gameplay things that could be fixed.

You could have made the spy balloon go further up in the sky, because it stops very quickly. Making it fly up until not in the player sight anymore isn't hard.

You could have added an indication on where to find the radar, like an outline on it . I didn't knew it was at the spawn and explored the map for 10 minutes before finding it. The map is very large compared to the area where the game actually plays.

The walking and running animation speeds doesn't fit the actual movement speed of the character. You should have slowed down the movement speed. Also, you can run in backwards direction which looks and feels kind of weird.

When talking to the Colonel, it is hard pressing the next button since the character goes away when you move the mouse. Yes, that is right, when moving the mouse to rotate, you also move away since the pivot you are rotating around is next to the player instead of centered. When walking up to an open gate, the gate immediately closes, and you have to wait for the animation. Since the rotating pivot is wrong, you can noclip through most walls and fall under the map. The tents don't have a collider, so you can walk through them. The player doesn't know when he is in the air and can infinitely jump, basically just fly around. The spy balloon only goes a couple of meters up into the air before stopping. There are so many things in the world that I didn't even see the radar and balloon being in the start. There are a lot of shadow glitches and communication is misspelled in the dialog.

Sorry, there are a lot of bugs in your game, but it's nothing impossible to fix. I believe in you.