Whatever Half-Life players say is the worst part of Half-Life, they're all wrong unless they say the worst part is Surface Tension. The helicopter would not die for me, there were snipers everywhere, I still have no clue how the heck those Bee guns work, and the minefields..... Ugh.
However, I really can't blame the game for being too hard on me for EVERY death, afterall, this happened: