Roll 4d6: 5, 5, 2, 4. Drop 2 for a total of 14. Assuming this is above average, let’s assign this to DEX.
Roll another 4d6: 5, 2, 5, 6. Drop 2 for a total of 16. Damn! Should have used this for DEX. Doesn’t matter, however. We’ll use it for STR. This is going to be a master assassin!
Roll the last 4d6: 5, 5, 3, 3. Drop 3 for a total of 13. This must be my lucky day. Use it for MIND.
This gives us STR 16, DEX 14, MIND 13. STR bonus is +3, DEX bonus is +2, MIND bonus is +1 since we have to round down.
Skills are Level + 1 because we’re human. And Sub is + 3 because we’re a rogue. Thus: Phys 2, Sub 5, Know 2, Comm 2.
There’s no magic to worry about. As for combat, we’ll be wearing studded leather and a large weapon because we’re so strong: A katana, which we could use as a two-handed weapon, if necessary!
Hitpoints is STR + 1d6 (3) = 19. Not bad for a rogue…
Armour Class is 10 + DEX bonus (+2) + armour bonus (+3 for studded leather) = 15.
Melee attack bonus is Level + STR bonus = +4.
Missile attack bonus is Level + DEX bonus = +3.
Let’s consider the katana like a bastard sword. Damage is thus 1d10 + STR bonus = 1d10+3.