I need help understanding the briefing before metal gear solid the twin snakes, please help

hello everyone, i'm not native english and it's kinda hard for me to get the briefing, but i'm trying my best to understand the story (while also doing pretty good with death stranding's story)

i'm currently in the briefing before starting to play metal gear solid the twin snakes, but i need help understanding some things:

  1. so can someone explain to me, if the next gen special forces are stronger because of the gene therapy, how come we as a military, can't do the same thing?

https://preview.redd.it/o4wo2a04lmbe1.png?width=1395&format=png&auto=webp&s=43526def173f99e04ceb197ed08c8a76dd778b12

https://preview.redd.it/0c53gf84lmbe1.png?width=1283&format=png&auto=webp&s=14e13c9805d5b6c16e31091db2aae6b6dbb75be3

  1. what's the diffrence between the "next generation special forces" and "high tech special forces unit foxhound" ?

https://preview.redd.it/15f1ome3mmbe1.png?width=1330&format=png&auto=webp&s=17571462f51bc54b1db109beea15291b2500b462

https://preview.redd.it/pgco6y45mmbe1.png?width=1534&format=png&auto=webp&s=f77c5326f62f6b81add36d22f498348ef13605f6

thanks very much for helpers!