Skipping T2 is usually silly af, and only works if you coordinate with your teammate so that he is focusing on anti tank forces during the mid game. Also, you often need a reinforcement possibility at the frontline, so if there is no OKW medic HQ, I prefer 251 HT.
Btw a straight build order isnt always the best, it depends on the map, enemy faction and what game mode you play (1s/2s/3s/4s). But in 3v3/4v4, I wouldnt build more than 2 grens, and especially if you play with a mate, you can think about double sniper on open area maps
![B-) B-)](/images/Smileys/cool.gif)