Man up really.. its part of the game..
So much protection. Means a hot n sweaty you who will not call hits as you cant feel anything.
This will piss u off for being too sweaty and the other team for cheating!!
Getting pinged is part of the experience, if you dont wana get shot, stay in the safe zone
I tend to wear a long sleeve tee and a sweatshirt. Sometimes a vest or rig. But thats generally it. Anymore is too warm anyless stings too bloody much but still get hit, it still hurts (depending on distance gun etc) and i still look like i have the pox for a fewdays.
I personally wouldnt layer up to minimise welts in mind though for reasons above.