Spawning AI in single player campaign

Is there any way to spawn AI NPCs in the single player campaign in Project Cartographer?
I've seen some examples of meta injection of AI NPCs in multiplayer servers and was wondering if it would be possible/easier in single player?

Yea there is way i had found through reversing the game and using my sight possesion hack to swap myself with that character spawned
it works for both mp and sp
but right now i havent made it to public builds yet so sry
Other ways i remember Sod had released his campaign mods where u can play as jackal hunter or grunts for certain maps
Like this
https://halo2.online/threads/halo-2-campaign-mod-cairo-station-h3.1194/

Here are some of my campaign mods, that you may want to try out.
Brute Takeback pt1 (Uprising) https://www.mediafire.com/download/3axk2qfx9alkalj
-- Play as a Brute against the Elites.

H3 styled Cairo Station https://www.mediafire.com/download/3epvfw8f3u16j3w
-- join forces with the Elites against the covenant.

ODST Delta Halo https://www.mediafire.com/download/247zpxxhf9a7k63
-- just a simple player and team character change to ODSTs