The Superhero Database Classification number, or SHDB Class, is a number that represents the overall 'power' of a character. All traits of a character are used for calculating the Classification.
What it DOESN'T mean
This doesn't mean that a higher class would always beat a lower class character. But the bigger the difference in Class is, the more obvious it is who'll win in a fight.
How is this calculated
( INT^1.3 + (STR*0.5 )^2 + (SPE*0.5)^2 + DUR^1.6 + (POW + (SPS*SPL))^2 + COM^1.8 ) ^ TIER
Super Power Score and Level
Every Super Power has a score (SPS) that is used to calculate the Class. Each Super Power also has 3 levels (SPL). The level is set when connecting that Super Power to a character. The level determines the final score, of the Super Power, being used in the calculation.
The Nemesis-T Type in RE3 remake has similar enhanced attributes as a tyrant. However, it also has additional weapons and abilities like its rocket launcher, tentacle grab attacks, and can summon zombies to aid it. Nemesis-T Type's biology and development by implanting the parasitic NE-α gives it attributes designed to make it superior to standard Tyrant models such as the T-00. in other words, nemesis is generally considered a more advanced and powerful biological weapon than the T-00.
just nemesis takes this fight a bit with a heavy hand.
Sources describe Nemesis as the pinnacle of Umbrella's bioweapons research at the time. It incorporates lessons from other projects like T-002/Mr. X and the Tyrants.