I am working on a character design who will have 4+ arms. I am planning on having the character wield multiple weapons and was going to focus on full attacks and two weapon fighting. Then I read a guide discussing vital strike and how when used properly it can deal significantly more damage than multiple iterative attacks and critical hits. So I am looking into ways to have the same 4+ armed character use a standard attack with each pair of arms to benefit from vital strike.
However the issue is that I do not know multiple arm rules and combat rules well enough to know if this is possible. When I read the combat rules for two weapon fighting and the feat TWP neither say what kind of actions they are. Which to me suggests that a character can perform two weapon fighting as a standard attack without using a full attack. But since flurry of blows and a full attack both use full round actions maybe I have only ever seen it being used in a full round action. To be honest before I started working on this I thought TWF was always a full round action.
I found this wonderful feat which is designed for monsters with 4+ arms which takes the place of two weapon fighting and also suggests the same as above. The feat is multiweapon fighting.
Am I correct in that a 4 armed character could wield two 2-handed weapons with both weapons taking -4 on attack rolls and each could make a standard attack which benefits from vital strike in a round? Also using light weapons would increase the number of attacks but would still be made at -4 as the feat says nothing about light weapons being reduced to -2 like TWF does.