I dont usually do Helminth abilities on my builds because i like the normal playstyle of the character, yet i dont like the Navigator ability... So, feel free to keep the ability or do an helminth of your choice

[Infiltrate] is very useful even outside Spy missions since it keeps you safe if you mess up something and still be able to catch up with enemies

[Nira's Hatred] aint really needed, but let's be honest... Her health sucks...

You can still be able to use umbra mods without the forma, but you still have to mod her correctly