As it seems alot of you guys do not know about the daily quests, let me give you some info about it.
Basically, you can make between 3.5m - 4m EXP, and the Ladder Point reward is between 150 - 200 per day. The quests take 30 mins MAXIMUM if you're a real slowpoke or if you're unfortunate to dc while doing the Find the Scout quest.
There are 3 quests in total, but 2 of them rotate depending on which day it is and one you can do each day.
X in this topic means Karus/El Morad, depending on your nation. If you're human, think Karus.. and If you're Orc, think El Morad.
[Analyst] Julius shows you the following quests;
Take the secret document of the enemies - This quest is do-able each Monday, Wednesday, Friday and Sunday. All you have to do is pay 1,000,000 noah to get a invisibility potion, in order to practically go invisible, run into Orc Base and "talk" to the X secret depository. After you get it, town and turn the item in and voila, 2m EXP and 150 LPs.
TIP: Make sure you've got sw (this includes rogues) and use the potion, and THEN run into your opponents base to get the document. The faster you can run in and get out, the less the risk of getting EXP'd!
To find the lost soul - This quest is do-able each Tuesday, Thursday and Saturday. Start the quest up, go into bowl and find the [Death of brave warrior], basically a glowing dead corpse which gets respawned if left untouched every 10-15 mins. You will NOT be able to town while this quest is on, so be careful. When you've gotten the soul, run back to X Base and turn the quest in, you'll receive 1,5m EXP and 200 LPs.
Find the scout - This quest is do-able everyday, so atleast that's a good thing. Basically, all you have to do is start the quest, go X side and find the spies that are located behind the enemie lines. Each spy will give you 500k EXP, the maximum amount of spies you can take with you back to human base is 4, so that's 2m EXP. Be carefull, you CAN town but if you do, you lose the spies so you have to run all the way back from enemy side to X base in order to get the reward.
This is it for now, just thought I'd type this in since I notice alot of people seem to miss out on this great and FREE EXP.
I myself went from level 80 to 81 (That's 2.1B EXP) only by doing the daily quests + chaos (and the cursed gobblet, <3), I didn't put my foot into a EXP party until the last 0.17% lolz.