ImpostorOak
Goro is a Pokémon
They absolutely do combo. Stryker in my experience has ALL useful moves, Scorpion has a combo extender and two moves that don't add a lot.The way I see, there are 5 tiers right now:
Top 4
A+
A
B
Sub zero tier.
It is my honest opinion that Reptile sits solidly at the top of the B tier, when I'd want him to be at A+ at the minimum lol.
Of course, everything I say is just my personal take and obviously not an universal truth. I must say, however, that I've been playing competitively since MK9 whenever possible against top Brazilian players (and scoring some wins here and there at offline locals), so the way I see, there's seldom any characters from outside the top 2 tiers that make any top 8 placement in any major tournament.
I have not yet tested Stryker, though. Mostly trying out Scorpion, who gives a welcome damage bonus do Reptile's combos and helps with invisibility setups, and also helps with sneaking an overhead into distracted players.
Is stryker that much better? All I see is people using the grenades to keep things safe - they don't combo if you are juggling an opponent, unlike scorpion's fireballs, and his overhead/low leads to nothing on hit.
I enjoyed hearing your credentials, I have similar experience. I'd really suggest you try to play the character with other kameos and try to play with a different idea than mix. Staggers and spacing work best. Stryker helps with that most.