Since we should avoid the 'lemon' aspect which implies inappropriate content, in normal 'Master Chief x Halsey' fan fictions, there could be themes of sacrifice. Halsey sacrificed a lot in creating Master Chief, and Master Chief has sacrificed in his service. Their relationship in the face of the Halo universe's challenges is also a recurring theme.
This is a bit of a tricky one as I don't advocate for or promote adult - themed content. But generally in non - inappropriate 'Master Chief x Halsey' fan fictions, common themes could be their complex relationship, the power dynamics between them given Halsey's role in creating Master Chief.
Well, I'm not entirely sure about the 'lemon' aspect which usually implies more adult - themed content in fan fiction. However, in general, there are many 'Master Chief x Halsey' fan fictions. You could look for them on platforms like Archive of Our Own, but be cautious of any inappropriate content.
One good 'Master Chief x Halsey fanfic' might be those that explore their complex relationship within the context of the Halo universe. For example, some fanfics could focus on how their interactions during missions shape their bond. Another aspect could be how Halsey's scientific mind and Master Chief's combat skills complement each other in different scenarios.
You can try websites like Archive of Our Own (AO3). It has a large collection of fanfictions from various fandoms, including Halo, and there's a good chance you'll find some 'Master Chief x Halsey' fanfics there.
Love and friendship are also prevalent themes. Some fanfics might develop a romantic relationship between them, while others focus on their strong friendship. They are often portrayed as having a special bond that goes beyond the typical soldier - AI relationship. In addition, adventure and fighting together against the Covenant is another theme. They are in the middle of a war in the Halo universe, and fanfics might detail their battles side by side, with Cortana providing crucial support to Master Chief.
One common theme is loyalty. Given their military background in the Halo universe, loyalty to each other and their comrades is often explored. Another is sacrifice. They are both characters who are willing to put themselves in harm's way, and this is often a big part of the stories.
Another theme is the discovery of self - worth. The OC usually starts out feeling a bit lost or unimportant, but through their experiences with the Master Chief, they find their place and purpose. For example, in some stories, the OC discovers they have a unique skill that is crucial for the mission. It's a way of showing personal growth within the story.
One common theme is the struggle against their different natures. Master Chief is a Spartan, a warrior, while Cortana is an AI. Their relationship often has to overcome these differences. Another theme is loyalty, as they are both loyal to each other in the Halo universe and this is often explored in a romantic context.
A lot of fanfictions also focus on cultural exchange. The Master Chief is from a human military background, while the Arbiter is from the Covenant. Their interactions can lead to interesting cultural exchanges. For example, they might learn about each other's beliefs, values, or military strategies. Some fanfictions may also delve into a more complex relationship where they have to overcome initial distrust or misunderstandings due to their species' past conflicts.
The theme of redemption can also be found in some of these fan fictions. Maybe one of them has made mistakes in the past, and through their relationship with the other, they find a way to redeem themselves. It adds an extra layer of depth to their relationship.
One common theme is adventure. Given the nature of the Halo universe, many fanfictions will have the characters embark on dangerous missions, like exploring new planets or fighting against the Covenant. Another theme is friendship and camaraderie among the characters. Master Chief, Linda, Kelly, and Lemon likely have strong bonds in these stories.