Let’s talk about who helped the best in the New Vegas main line at the end.

It depends on what kind of gain you need.

First of all, EDE is a must. A perception gain of 20 keeps everything under control.

If you are taking the submersible sniper style, you don’t need to bring teammates, just wait for ede indefinitely.

If you lack long-range damage in a large troop flow, then bring Boone.

If you don’t pursue long-range damage to your teammates and use live ammunition, then bring a doctor. Can be equipped with energy weapons. Useful when facing heavy targets.

Cass uses a shotgun, which is very useful at close range. Nine out of ten shots will miss at long range, unless paired with a hunting shotgun and single-point bullets.

If you use energy weapons, bring zombie cowboys. After all, the durability of energy weapons is too low, so the cowboy's repair buff is very useful at this time, and if you can give the cowboy a brush gun, the output is also very impressive.

Veronica, Rex and Blue Man are useless. Deathclaws can't be dealt with in melee combat.