Puzzle

Hey there. So, I decided to make my first giveaway. So here is some quite easy questions for you.
Link looks like: /X###x

(X) First letter of a Mass Effect Adept class power which was not seen in ME2 or/and ME3.
(#) Number of Roman factions featured in Rome: Total War.
(#) Which month does see most babies being born?
(#) Number of highly praised strategy games with its series title being placed after era name in my Steam account.
(x) First letter of a gun/weapon in UT series, which was capable of delivering devastating and -shocking- combo.

Best of luck. ~50 minutes remaining.

Also, Xotic giveaway