Sprint and flamers was tried and was broken with Penals...
All they need is a redistribution of their RA.
I say make their base RA 0.91(current 0.95)
let vet give 0.9(current 0.935)
let vet3 give 0.77(current 0.71)
end result 0.63063 Target size vs old 0.6306575(I doubt that beyond 5th decimal point matters very much)
And with 6th man:
0.5990985 vs old 0.599124625 Target size (again, I doubt that beyond 3rd decimal point matters very much)
This will ass grens much easier to use early on while still retaining their current vet3 performance.