that Planetside 2 challenge is stupid time consuming. You can 1 cert point for every hour you play, you also gain 1 for every 250xp you gain or something like that. You can a certain amount depending if you captured a base. Now you need 200 to unlock 1 C4 pack, then you need another 500 to unlock the second C4 pack.
You either have to be very good at the game or very lucky, there's a huge latency problem with the game, people jump around or just disappear from your FOV so killing them at times it a pain. Then there's the moments where you unloaded an entire clip as a heavy into an assault class and he hasn't died yet he turns and bursts you with half a clip and you're a goner. If you're not playing with people on voice chat on the same squad goodluck getting anything done. Between the friendly fire and the idiots that drive off into the middle of nowhere the game is a giant mess.