Hello there! I'm not sure if this issue is known or not, but when in friendly mode, if you equip the 'loose cannon' and fire it, the large initial pushback from hitting enemies is still there. This can easily be abused as you can throw away engineers, stopping them from defending sentries, hitting medics and breaking ubers etc. Not sure if this is a known issue, but I found out today while playing the knockback effect is still there. Thank you for reading.