ITEM_STAT_ACHIEVEMENTEXPMOD is the only one that isn't in it seems
we already support combat exp mod
```
bool Player::AddXP(int32 xp_amount){
MStats.lock();
xp_amount += (int32)(((float)xp_amount) * stats[ITEM_STAT_COMBATEXPMOD]) / 100;
MStats.unlock();
```
and tradeskill xp
```
bool Player::AddTSXP(int32 xp_amount){
MStats.lock();
xp_amount += ((xp_amount)*stats[ITEM_STAT_TRADESKILLEXPMOD]) / 100;
MStats.unlock();
```
ITEM_STAT_ACHIEVEMENTEXPMOD is the only one that isn't in it seems
I need more criteria for this honestly
625 ITEM_STAT_COMBATEXPMOD
626 ITEM_STAT_TRADESKILLEXPMOD
627 ITEM_STAT_ACHIEVEMENTEXPMOD
guess theres an item stat for them that needs to be wired
we already support combat exp mod
and tradeskill xp
ITEM_STAT_ACHIEVEMENTEXPMOD is the only one that isn't in it seems
since aaxp needs a complete implementation this is low on the list.