Combat Doctrine
Though the Red Fox Chapter has been trained using the Codex Astartes rules when under the training of the Ultramarines, the Red Fox Chapter as a whole is quite selective in terms of equipment and vehichals used in combat.
Squad Components
A squad of Red Fox consists of ten marines one of which is a sergeant. Each marine is equiped with a bolter, bolt pistol, and a finely crafted close combat weapon. The most favored combination of special weapons is often a rocket launcher and a heavy bolter. Having the ability of switching different types of ammunition makes them highly effective against infantry forces. Along with ten marines accompany the same amount of initiates, making each squad double effective. Initiates are often the ones carrying the special weapons and often go on sabatoge missions. If the squad has a transport, more than often the astartes will be the ones riding the transport as the initiates are left with the sergeant to perform support roles.
Fast Attack
One major component that underly used by the Red Fox Chapter is fast attack. The bike and land speeder are completely absent from the chapter. Jump Pack infantry however is commonly used by the first company but is often taken at each companies discretion. The closest thing to a fast attack unit is often used with their razorback transports. No longer used by the chapter for their squad sizes being to large to fit in them. Razorbacks are often used by traveling like sentinel units traveling in three vehichal units. Often these units will take a position far away from the main force picking off the enemy force. These units often carry with them inexperienced initiates that the company has no suitable sergeants that have enough patience with them. They often try to fortify their razorbacks mistakenly thinking they will be able to hold off the enemy. As a result they often drive away in good haste when seeing enough of the enemy force.
Heavy Support
Heavy Support is indeed a key component to the Red Fox Chapter organization. Consisting of ten men each, devastaters play a key role in each company except for the Chapter's First Company. The chapter's devastaters is well known for switching their devastater's fire power during the power to better suit the enemy they are fighting. Sometimes even making their devastaters go on sabotage missions with lighter special weapons. Initiates play no roles in devaster squads. Also having a good arsenal of tanks at their disposal, their most used tank is the whirlwind often having great success with them against tyranid forces. Red Fox vehichals and transports are not driven by astartes but by initiates that have undergone the pit and have not been able to recover by their wounds(sometimes never fully recovering). As an honor they are allowed to drive and support the chapter by driving their vehichals the only except being the Land Raiders.
Elites
Unlike other First Companies in other Chapters, the Red Fox 1st Company is unique. It would be the wrong to assume that the member's of the Chapter's First Company are superior to the other elements of the chapter. All who wear the power armor of the Red Fox Chapter are considered veterans. The Red Fox First Company is more of an Elite Organization for a needed purpose. The elements of the First Company consist of Jump Infantry, Land Raiders, and Terminators. And the individuals that join the first company do not regard themselves superior to other astartes in their chapter. Unlike the rest of the force, many do not seek to join their ranks and more often than not, astartes are convinced to join the first company. The majority of the Red Fox Chapter likes where they are and the tactics they use are well embodied inside them. Moving to the first company is like living a different life to them. Though an honor in its own way and not that Red Fox Marines refuse to join the 1st Company; if given the preference, most Red Fox would rather fight using the normal Red Fox doctrine.
Components Unaccounted For
Most Chapters strictly follow the 1000 marines per chapter rule. However, though the Red Fox Chapter does follow these rules, their are certain circumstances and components that the Chapter does not account for. Certain chapter titles are not accounted for in the chapter's number such as apothecaries, techmarines, captains, librarians, chaplains, and the Master himself. Another component of the force not regarded for the number are the Chapter's dreadnoughts and the Foxtrot.
The Call of the Foxtrot
Those that know about this ongoing occurance (which are very few) regard this as a curse much like the wulfen. However, it barely even hits the extremity. Unlike most chapter's heros, the Red Fox Chapter Heros have a problem fighting cohernetly within their units and squads. By Heros I speak of individual marines that perform actions that go way beyond the line and expectations of duty. These "Heros" often go into a brutal yet swift frenzy unlike anything ever seen. These Heros perform great deeds destroying all enemies within their path. Often called "Heros" by most and more than often "Foxtrot", the occurance once started stays installed in the Red Fox Marine perminantly. Losing his ability to fight with the tactics and discipline taught to him. Once the battle is over, the marine will go back to normal. But when the call of battle calls, the eyes of the marine go blue, and some of the hair follecules will often turn red or/and orange. Some rumors even say that they grow fangs. Because the Red Fox Chapter performs best when fighting and working coherently together, any individual performing actions that differenciate from the rest will often result in weakening of the performance of the squad. More than often if this occurance happens in battle, the squad as a whole will let the affected marine go off in his own and reform the battle squad to where it function coherently again. The most technical term for these affected marines is "Foxtrot" but their most respectful term is "Hero or Heros." Because these marines have lost their ability to function within a squad they often work as loners and often scavenge the battle fields looking for more effective close combat weapons. These marines are still fully supported by the Chapter, however are not accounted for in determining chapter strength. A Foxtrot will often follow a particular company into battle performing heroic deeds. More often though Company Captains will try to make them part of their personal guard, however, when the call of battle comes, very little control do they have over the Foxtrot. As such Company Captain's are not allowed to punish Foxtrot for going into battle without their consent.