Hmm, I only have this out for the next four days (got a free rental, and they were all out of CoD4... not that I'd rather have CoD4, it's just I don't expect to be able to finish much of the orange box in five days)... I haven't played Half Life 2 yet (Half Life 1, yes)... should I play through Half Life 2 before going on to the Episodes, or since I only have four days, should I just focus on finishing the episodes, and will I really miss much?