Hold up, wait a minute. What do you mean by this? The mod tools contain the current stats of the units in the game, don't they? I've used the mod tools to make tuning packs and the stats look up-to-date to me.
No, they contain a copy of the game and that is a very old copy. The patch "Hotfix Update - April 22nd 2020" is the first which is missing. Clone the assault and tank hunter sections you will see these symbols, while that update changed them.
Newer units like the Zis supply truck and raid section are completely missing and all stats are old. The game will use the live stats as long as you don't clone the specific objects in your tuning pack.