In Veteran mode, your life expectancy is cut to three or four shots until 
you die. However, Veteran mode does not improve the enemy's aim or strategy. 
Use small blocks or small bulges of hills as cover and crawl, because you do 
not get points for kills, so do not take the Nazis head on. Let your allies 
lay some fire, if there are any. If not, throw a smoke grenade and shift 
between crouch and crawl positions, laying cover fire and stall some time 
for the smoke grenade to spread before the Nazis rush in. Use this smoke 
cover to fall back to the nearest safe position where you can regroup or 
hide and pick the Nazis off from afar.