Here is when NOT to reinforce.

Do NOT reinforce:

1. To be your turret in the middle of battle; instead, throw them AWAY from threats so they can reposition and assist without dying immediately again.

2. Just because they died far across the map; assess where they were first, and look for texts if they discovered or pointed things out (and also when they tell you to reinforce).

3. If they dropped samples, especially the Super kind; figure out where they dropped the samples, and either go for them yourself or reinforce near the location (this also applies to dropped equipment unless the area is being swarmed).