Runecairn: Advanced Rules

All is based on PDF Runecairn: Core Rules  v2.1.

1. "Dual and 2-handed weapons. If attacking with two weapons at the same time or one weapon held in both hands, gain damage advantage. "    Do what mean that bulky weapons like Breaking maul("Heavy two-handed maul with dense iron head fixed to reinforced oak shaft" so mention two-handed) and Hewing spear("Long oak shaft with curved iron blade" not anything about two-handed) can be used one-handed and you use it two-handed if you want the  "gain damage advantage" from "Dual and 2-handed weapons" part of the rules? Why I feel I need to ask is that I want to assume that bulky weapons need to be used with 2 hands but if the gives damage advantage automatically and you  no choice to but to 2 hand it to use it then "Smash: Bludgeon your opponent with damage advantage; target needs to make Str save or be knocked down (Fatigue)" only the weapon Breaking maul gets then the damage advantage from both 2 hands and from smash seems weird that you always get it 2 time, that to my understanding do nothing extra to having it only 1 time.
2. "Dual and 2-handed weapons. If attacking with two weapons at the same time or one weapon held in both hands, gain damage advantage. ".    As we are talking about this I can ask about it can I use two Axe, bearded one in each hand to gain damage advantage or is it only meant for Hand axe and Hunting knives.
3. "Parry (reaction): Deflect an incoming attack and riposte (Str) • Success: Avoid all physical damage and retaliate for double damage • Failure: Retaliatory attack from the target at double damage"    How is this meant to work? Like if you success then you "Avoid all physical damage" and I understand that part, but "retaliate for double damage" part I am not sure how to use. My 2 way to read it is to 1. Get a free attack as part of the parry what will do double damage, or 2. That if you attack with your action on your next turn it will do double damage. So what why is it meant to be or maybe I am completely wrong, then plz tell me how it works.    Then same similar for failure. Is it the attack that is being parry that do double damage or will the attack that is being parry do the damage normally can then "Retaliatory attack from the target at double damage" mean that it gets an other free attack and that will do double damage? So how is all this meant to work when a failure happens when parry.
4. "Multiple attackers. If multiple attackers target the same foe, roll all damage dice and keep the single highest result (damage advantage)."    This one I have what I think it will do but I am not sure so here I hope you can conform or correct me. I think it works that say 3 monster attack your character then all attack as normally to check how much damage they do, but you only apply the highest. Example: monster A hits for 4 dmg, monster B hits for 3 dmg and monster C hits for 5 dmg, then you are only hit for 5 dmg and that is what you can use your reaction to avoid damage or how you want to defend your self or not. Or have I misunderstand it and it works some other way?
5. "Roll: Make a Dex save to roll away from an enemy’s attack, avoiding all physical damage (causes Fatigue) • Withdraw: Make a Dex save to disengage from combat and retreat, avoiding all damage; failing the save means you escape but still take damage from the attack"    Can you explain Withdraw here what you mean as it do not seems to causes Fatigue can that seems to make it better then roll in all kind of ways. Like withdraw will "avoiding all damage"(that will also be magic damage I think) instead of roll that says "avoiding all physical damage". So how do you intend withdraw to function so that it will not be a better roll what also don't causes Fatigue.
6. "While resting, spend 1 soul to permanently increase one of the following attributes: Strength, Dexterity, Wits, Spirit, or Vitality. "    Are there any limits, or can you go as high as you want. Like sure more then 19 won't help you get better rolls, but as you can lose strength that even higher is useful.    And "Parry (reaction)" as far as a can tell have no Fatigue cost making it super strong with high Strength value, making it posable to be near godlike when able to Parry to "Avoid all physical damage".

any chance for community copies again?

This is an awesome little game!  I am looking forward to some solo dungeon delves!