I just started Pathfinder RPG and I'm designing a level 1 character. How do I find my base attack bonus? I have the core rulebook but I'm quite confused. Stats: Str 16 Dex 15 Con 15 Int 12 Wis 12 Cha 13 Half-Orc Fighter with Battle Axe, short bow, and great club. Feats are Dodge(combat), Point-Blank shot, and lightning reflexes. Please help and thank you so much!
Every class has a table, showing the Base Attack Bonus (or BAB), Base Saves, and special abilities gained at each class level. So, assuming you only have levels in one class, you look at the BAB value on that table. For instance, Fighter 5 gets a BAB value of +5, and Cleric 4 gets +3. Most classes will gain either +1 or +0 BAB at first level.
If you have levels in multiple classes or racial hit dice for some reason, the process is slightly more complicated - you look up the BAB amount for each of the class levels and hit dice you have, and then total them together for your total BAB. For instance, if you are a Fighter 5/Cleric 4, your total BAB will be +8.
To calculate your actual attack bonus for a specific attack type, you then add any other modifiers involved to the BAB, such as for the stat involved (Str for melee or Dex for missile, generally).
In your specific case, assuming you are level 1, your BAB will be +1. Your attack bonus with the melee weapons (Axe and Great Club) will be your BAB of +1 plus your Strength modifier of +3, for a total of +4. Your attack bonus with the missile weapon (short bow) will be BAB +1 plus Dex +2, for a total of +3. At 30' or less, Point Blank Shot will add an extra +1 attack bonus with the bow, for a total of +4. Your GM may apply various other specific modifiers during combat (one likely to come up is a -4 penalty for shooting into melee, which Precise Shot can remove).
your base attack bonus is not the same as your attack bonus. Think of it like a base military soldier's paycheck. They always get that much money a month, but if they get assigned special training, they get paid bonuses, so their income goes up in certain circumstances.
As a Fighter, your base attack bonus is always your level for the first attack, and your level -5 for the second attack, level -10 for the third attack, and so on. While your strength gives you a +3 bonus to the level 2's +2, totaling +5, your base attack would still be a +2. You must be level 6 before you get a second attack. You do not use your strength bonus for calculating how many attacks per round you get.
A starting (level 1) Fighter gets 1 extra feat, Dodge,
a level 1 gets 1 extra feat, Point Blank Shot
a level 2 (Fighter only) gets 1 extra feat, Lightning Reflexes
if you are not level 2, that you are a Half Orc implies you did not get a third feat and must remove one, as only humans get a bonus feat.