What is a trick?

I've heard of special tactics from the internet and veterans, and this recruitment method is also widely circulated among military fans. At that time, there was no official news to confirm.

The so-called special recruit means that the army recruits talents with outstanding talents or special skills (useful to the army) through special channels, special means and related procedures. For example, some people may not be soldiers at all because of their physical conditions, but they have good hacking skills. If they are specially recruited by the army, they can be experts in electronic warfare intelligence stations.

I remember mentioning this way in some domestic TV dramas, but I don't remember it specifically. According to the available information, the special recruits are generally technical officers or literary and art soldiers. If in wartime, because of the need of employing people, the situation of special tricks will be very obvious.