Realistic would need some changes here and there and improvements are always welcome. However, the problems:
1) Not many are Realistic mode players and Normal is extremely different from Realistic. This is why it is hard to balance Realistic mode and why people always dismiss suggestions on realism to be implemented in Realistic mode.
2) R/S and Realistic share the same weapon balance, yet the two modes have very different gameplay styles.
3) Most of the suggestions regarding or related to realism are based on what the suggesters saw in other games etc. Unfortunately, many of these suggestions are poor or unfitting for Soldat gameplay.