There are several ways of obtaining a ruby from a rathalos. One way is to cut off his tail and carve it, "Break" his face and obtain it in the rewards, and last and least, make him drop it (this is done normally from waking him up, knocking him from the air, ect). Doing all 3 is the best way to increase your chances of grabbing a ruby, considering that its a 2-3% chance per method anyway.
Hope this helps! :3
In Monster Hunter Freedom Unite, you can obtain a Rathalos Ruby as a rare reward by breaking the Rathalos' head or carving its tail after defeating it in a quest. Additionally, capturing the Rathalos also has a chance of yielding a Ruby as a reward. It is a rare drop, so it may take multiple hunts to obtain one.
you need rathalos materials, 1 wing, 2 scales, and 3 dragonite ore
while rathalos can fly and lagiacrus can swim i think that the rathalos could because it has the stealth advantage and that rathalos kick butt well not mine with full vangis but well you know I dont know how this will help new hunters it might discourage them but well i got nothing...
I think it's after you beat the Rathalos.
Dora..... just kidding its rathalos
A giant Rathalos comes down from the sky and eats people
They are returning the diablos, rathian, rathalos to tri and that's it.
You have to complete Extra Ops 121 or 122 (doesn't matter) and damage the wings of Rathalos ( I damaged all the parts like the tail and head just in case). Dont kill Rathalos though, you have to tranquilize Rathalos after you have damaged his body parts. The Musket will then be unlocked once you have completed the mission. The design documents will say "Rathalos Design specs" and when you go back to mother base you will have the musket ready for design. DONT FORGET that you also need to have an R&D member to have Japanese Patriot skill to develope this weapon.
Well the best way to beat a silver rathalos is with a sonic bow 2 or 3 or above. Since its weakness is electricity, you can bring your felyne for distraction too. I made a link to help more.
it's easy to kill him with bow like kut ku stave or queen blaster!
You can get them from high rank Rathalos/Rathian High rank being Hr 31+ If your unsure you should check the Wiki =)
get your self rathalos armour and get the obellion sword and have 10 potions 10 herbs 4 whetstones then go and kill it