Paste this in your hudlayout.res:
HudDamageIndicator
{
"fieldName" "HudDamageIndicator"
"visible" "1"
"enabled" "1"
"MinimumWidth" "10"
"MaximumWidth" "10"
"StartRadius" "80"
"EndRadius" "80"
"MinimumHeight" "30"
"MaximumHeight" "60"
"MinimumTime" "1"
}