Very simple. A specialist may spend 2 skill points at creation or on levelling up to gain +1 attack bonus or 1 spell "slot", i.e. you may memorise a single spell and cast it without blowing everyone up or turning them into piles of eyeballs.
Yes, you could get a better attack bonus than a fighter. Just remember you have no HP, no skills, and why on earth would you pick a specialist to do this? Sort it out.
Since the specialist is now anything but, and there is a long tradition of arbitrarily renaming the sneaky-guy, I will now call them Scoundrels. It is not restrictive in scope, somewhat adorable, and suggestive of being a vagabond, a happy-go-lucky rapscallion, or a downright shitbag.
This seemingly small change will allow the scoundrels to be whatever the players want them to be without slapping a huge and alien system on top.
Save vs. Death
And another thing: sometimes I don't know what save to have people roll, but I know that there definitely should be dying going on here. For those situations, for the times when it's just bare faced luck resulting in certain death, have a Save vs. Death.
Fighter
|
Magic-User
|
Scoundrel
|
|
0
|
15
|
17
|
12
|
1-4
|
13
|
15
|
10
|
5-8
|
9
|
11
|
8
|
9-12
|
7
|
9
|
6
|
13-16
|
5
|
7
|
4
|
17+
|
3
|
5
|
2
|
Saves tell you a lot about how the characters are perceived. Go look at the lists now, they're a little bit interesting.
Anyway, this table tells you that scoundrels are lucky, fighters stare death in the face, and magic-users had it coming.