These were taken from the manual[synnaskole.sweb.cz] and from a player made FAQ[mbx.streetofeyes.com]

Are you playing on a Mac? If YES, that is why.
See the Mac Install guide: here

Why yes. In the main Mount&Blade folder there is a file called “binkplay.exe”. Rename it to something like “binkplay_disabled.exe” or delete it, the videos won’t play anymore. If you ever change your mind, rename it back to its original filename.

Enemies are a walking pantry for the savvy orc commander. Review your troops and slaughter some prisoners, you’ll have plenty of manflesh to feed your lads.

You have to have met these vendors first in order for the menu to be enabled. This is so that people can take the time and enjoy the beautiful recreation of Middle Earth by the talented artists of the team!

You can enable this through TLD options, within the Camp menu.

Crafting is an incomplete feature. Do not spend any points on it.

Weaken the enemy further, as their faction strength goes down, they become more vulnerable and requirements for sieges will go down. You can also set these requirements in the TLD options.

Isengard and the tower of Orthanc are special, you have to grind the enemyforce down so that they spawn a last defence party. When you defeat that party, Isengard falls as the Ents join the fight and crumble its walls.

You need to successfully complete another oath. Kill lots of smaller parties, don't get help from allies (that doesn't count). Always kill the precise faction who'd slain the hero!

There are huge Wargs you can get as rewards from faction leaders, Uruks can ride those.

Nothing, at the moment. It’s planned to be expanded into a quest item. (no, you can’t mine Mithril)

Yes, there is here[mbx.streetofeyes.com]
(you lazybutt)

Let’s see, trolls live in the Misty Mountains. They live in caves. Now, where could they be hanging around?

You can only capture them if you have the quest "capture enemy commander" active. As far as I know, if you have the quest active, your chances of capture are high, and dependent on your prisoner management skill. IF you attack an enemy commander on your own, you will usually capture him, but if you join in, this may not happen. AFAIK, this is due to M&B native mechanics.

Only humans can be captured (true to lore) if you a good faction. If you’re evil, everyone is game for capture. Elves can never be captured if you are an evil side.

Rank is similar to the "renown" in M&B vanilla. You gain it by doing quests, fighting battles.
Rank points lets you gain rank in a particular faction. Influence is gained at about 1/6 of rank. So if you fight a battle and gain 6 rank, you gain 1 influence. There are other ways of gaining influence as well.

This is coded. At most you can get 13 rank and 2 influence although if you assist others, you sometimes get two checks at rank, ie you can get 13+2 and then 13+2. This also encourages people to do quests.

Yes, here[mbx.streetofeyes.com]

Yes, here[mbx.streetofeyes.com]

Transfer resource points from one to the other.

Animals are afraid of large groups of soldiers. If your party’s small, avoid Mirkwood and the mountains.

That is an incomplete quest. Do not spend too much time in it as it currently can't be completed.

Increasing charisma and leadership; increase your rank level in a faction

There are 3 things you need to meet.
1. The appropriate rank for a particular faction, for example, for Galmyne, you need to be a "close friend of Rohan"
2. You need a certain amount of influence
3. The city still needs to be around (esp Ulfas who is in West Emnet which used to get razed quite early)

The war doesn't start until you are level 8. Use this time to get a few quests under your belt, get some companions, money and explore.

The northern factions had their own hands full with a war too. If you help clear their enemies, Elrond might be inclined to help though... the same goes for Gondor armies

Resources replace gold. You have a bank account with each faction. Be careful if you are for example Rohan and you hire lots of elves - you may not have enough elf cash to sustain them.

1. Have a rank in a particular faction. Each higher rank, for example, be a Friend of Rohan, Close Friend of Rohan etc allows you a daily income for that faction.
2. Quests
3. Looting enemies. Either you get scrap metal or enemy weapons etc

Its a complicated algorithm.
All factions regenerate strength over time.
Winning big battles gains strength, losing these decreases.
I believe that if you lose a lot of battles in a short period of time, you lose more, and vice versa.