First, you need to know both universes well. Play the Halo and Gears of War games, read any related comics or novels. This will give you a good understanding of the characters, settings, and storylines. Then, come up with an interesting concept. It could be a new adventure for the main characters or a situation that forces them to act in unexpected ways.
Think about the characters you want to focus on. Are you more interested in the Spartans from Halo or the COG soldiers from Gears of War? Once you've decided, start building a plot around them. Maybe start with a simple outline of the beginning, middle, and end of your story. And don't be afraid to mix things up. You can introduce new enemies or have the characters use different weapons than they normally do in the games.
If you want the clearest chapter reference, go to Chapter 56. Early on, Lei Shen originally had no idea about the trending topics on Weibo.; later, the chapter leans on He had been busy renovating his studio for a while and hadn't even had....
Look to Chapter 33 for the clearest answer. It begins with Following the announcement, five artists respectively reposted the Weibo—..., keeps building through Instantly, "Shining Transformation Trip," already under intense scrutiny,..., and lands on Although Su Yinwan was considered half a.
Look to Chapter 51 for the clearest answer. It begins with Oh, okay." After uttering two syllables indifferently, Jiang Li bent down..., keeps building through By the time she reacted, Jiang Li had already disappeared at the end of..., and lands on If I opened a bar here, wouldn't I become a.
The best chapter pointer here is Chapter 84, "Is it Just About Having Hands?". It opens with When the villagers tasted his curry beef one by one, their faces revealed... and closes on Why am I tasting sand in my mouth?" Wen Jiaojiao's bravado gradually....
If you want the clearest chapter reference, go to Chapter 89. Early on, Director Sun took a step back, "What's the rush?; later, the chapter leans on It's true about the go-kart costing one point, but this time we're using....
If you want the clearest chapter reference, go to Chapter 45. Early on, Helplessly, Jiang Yan had no choice but to step on the accelerator.; later, the chapter leans on As Jiang Li had said, this stretch of road was indeed difficult to....
A practical answer is Chapter 93, because it turns the idea into a concrete scene. The chapter opens with Jiang Li looked back and saw several aunties linking arms, walking up the..., adds pressure through Even if they were hiring actors, could they really come up with such an..., and ends on I.
If you want the clearest chapter reference, go to Chapter 73. Early on, Director Sun, tongue-tied, finally managed to squeeze out a sentence,...; later, the chapter leans on But isn't it due to your production team's lack of consideration?.
The best chapter pointer here is Chapter 32, ""Shining Transformation Trip" Official Lineup Announcement!". It opens with You should know, an ID photo is like a mirror for demons. and closes on With airflow comes water flow, and your fortune will naturally improve."....