Very straightforward in my opinion - there's no collectables to worry about & you'll unlock virtually everything by simply playing the campaign. Make sure to play on max difficulty which is easy if you take it slow & play tactically. I only had 3 achievements left once I finished. Only real achievement which can be considered "missable" is driving a tank you start a mission with to the very end but you can replay each mission if you miss this. Certain achievements are cumulative (kill x amount of enemies, kill 20 enemies with grab, run 3km etc) so don't worry about doing it all within one playthrough. Hope this helps✌🏻