So, you want to get close and personal? This guide shows how I knife. Knifing is essential if you want to be succesful in One in the Chamber.
1. Find Target
Spot who you're gonna knife. Normally, you knife last second, unless you sprint after people trying to "tag" them. This step isn't necessary.
2. Sprint
They see you coming, and they're ready to knife you, so
3. Stop, pull back last second
They probably won't expect this. They try to knife, and miss.
4. Sprint, knife, kill
In that split second after they knife, move forward and knife. They are already putting away there knife and are completely vulnerable.
This may take a while to get used to doing, but once you get it down, it's a habit.
Hope this helps you, and I hope I see you on the battlefield!