James and Rhodey could bring their military expertise to Wakanda. They meet Black Panther and the War Dog. Maybe James trains the War Dog in some new combat techniques, while Rhodey works with Black Panther on strategic planning. The War Dog could then assist them in a battle against invaders.
Since Rhodey is a War Dog in this fanfiction, the plot could revolve around his missions. He might be assigned to protect a certain asset, or infiltrate an enemy organization. Along the way, he could face betrayal from within or have to make difficult decisions that would impact not only his own life but also the safety of others in the Marvel world.
One interesting aspect could be Rhodey's character development. Maybe he has to face new challenges as a War Dog that test his loyalty and courage. For example, he might be sent on dangerous missions alone and has to rely on his wits and combat skills to survive.
One possible storyline could be that James and Rhodey are on a mission in Wakanda, and they team up with Black Panther. The War Dog could be a key to unlocking an ancient Wakandan mystery. Maybe the War Dog has a special ability that only Black Panther can understand, and together they have to fight off some common enemies who are after Wakanda's resources.
The friendship between Tony and Rhodey in the fanfiction is a complex and multi - faceted one. It's based on mutual respect, as they both recognize each other's skills and intelligence. Rhodey respects Tony's genius in engineering and Tony respects Rhodey's military acumen. They also have a deep emotional connection, which is often tested by the challenges they face, but always manages to endure, making their friendship a central and heartwarming aspect of the fanfiction.